diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c7b83ec4..641736f4 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -62,7 +62,7 @@ importers:
         version: 8.2.0(@babel/core@7.23.5)
       ember-source:
         specifier: ^4.10.0
-        version: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(webpack@5.88.2)
+        version: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
       ember-template-recast:
         specifier: ^6.1.3
         version: 6.1.4
@@ -157,7 +157,7 @@ importers:
         version: 3.1.1
       '@ember/test-helpers':
         specifier: ^3.2.0
-        version: 3.2.0(ember-source@4.12.0)(webpack@5.88.2)
+        version: 3.2.0(@glint/template@1.2.0)(ember-source@4.12.0)(webpack@5.88.2)
       '@embroider/test-setup':
         specifier: ^3.0.1
         version: 3.0.1(@embroider/compat@3.4.0)(@embroider/core@3.4.2)(@embroider/webpack@3.2.1)
@@ -202,7 +202,7 @@ importers:
         version: 8.0.0
       ember-qunit:
         specifier: ^8.0.1
-        version: 8.0.1(@ember/test-helpers@3.2.0)(ember-source@4.12.0)(qunit@2.20.0)
+        version: 8.0.1(@ember/test-helpers@3.2.0)(@glint/template@1.2.0)(ember-source@4.12.0)(qunit@2.20.0)
       ember-resolver:
         specifier: ^11.0.0
         version: 11.0.1(ember-source@4.12.0)
@@ -211,7 +211,7 @@ importers:
         version: link:../ember-scoped-css
       ember-source:
         specifier: ~4.12.0
-        version: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(webpack@5.88.2)
+        version: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
       ember-source-channel-url:
         specifier: ^3.0.0
         version: 3.0.0
@@ -262,7 +262,7 @@ importers:
     dependencies:
       ember-resources:
         specifier: ^6.4.0
-        version: 6.4.0(@glimmer/component@1.1.2)(@glimmer/tracking@1.1.2)(@glint/template@1.2.0)(ember-source@4.10.0)
+        version: 6.4.0(@glimmer/component@1.1.2)(@glimmer/tracking@1.1.2)(@glint/template@1.2.0)(ember-source@4.12.0)
     devDependencies:
       '@ember/optional-features':
         specifier: ^2.0.0
@@ -272,7 +272,7 @@ importers:
         version: 3.1.1
       '@ember/test-helpers':
         specifier: ^3.2.0
-        version: 3.2.0(@glint/template@1.2.0)(ember-source@4.10.0)(webpack@5.88.2)
+        version: 3.2.0(@glint/template@1.2.0)(ember-source@4.12.0)(webpack@5.88.2)
       '@glimmer/component':
         specifier: ^1.1.2
         version: 1.1.2(@babel/core@7.23.5)
@@ -296,7 +296,7 @@ importers:
         version: 4.12.2
       ember-cli-app-version:
         specifier: ^6.0.0
-        version: 6.0.1(ember-source@4.10.0)
+        version: 6.0.1(ember-source@4.12.0)
       ember-cli-babel:
         specifier: ^8.2.0
         version: 8.2.0(@babel/core@7.23.5)
@@ -329,10 +329,10 @@ importers:
         version: 8.0.0
       ember-qunit:
         specifier: ^8.0.1
-        version: 8.0.1(@ember/test-helpers@3.2.0)(@glint/template@1.2.0)(ember-source@4.10.0)(qunit@2.20.0)
+        version: 8.0.1(@ember/test-helpers@3.2.0)(@glint/template@1.2.0)(ember-source@4.12.0)(qunit@2.20.0)
       ember-resolver:
         specifier: ^11.0.0
-        version: 11.0.1(ember-source@4.10.0)
+        version: 11.0.1(ember-source@4.12.0)
       ember-scoped-css:
         specifier: workspace:*
         version: link:../../ember-scoped-css
@@ -340,8 +340,8 @@ importers:
         specifier: workspace:*
         version: link:../../ember-scoped-css-compat
       ember-source:
-        specifier: ~4.10.0
-        version: 4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
+        specifier: ~4.12.0
+        version: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
       ember-style-loader:
         specifier: github:mainmatter/ember-style-loader#main
         version: github.com/mainmatter/ember-style-loader/5d262a1671a9354312a376d70df220289b8b3330
@@ -398,7 +398,7 @@ importers:
         version: 3.1.1
       '@ember/test-helpers':
         specifier: ^3.2.0
-        version: 3.2.0(@glint/template@1.2.0)(ember-source@4.10.0)(webpack@5.88.2)
+        version: 3.2.0(@glint/template@1.2.0)(ember-source@4.12.0)(webpack@5.88.2)
       '@embroider/compat':
         specifier: ^3.4.0
         version: 3.4.0(@embroider/core@3.4.2)
@@ -437,7 +437,7 @@ importers:
         version: 4.12.2
       ember-cli-app-version:
         specifier: ^6.0.0
-        version: 6.0.1(ember-source@4.10.0)
+        version: 6.0.1(ember-source@4.12.0)
       ember-cli-babel:
         specifier: ^8.2.0
         version: 8.2.0(@babel/core@7.23.5)
@@ -470,16 +470,16 @@ importers:
         version: 8.0.0
       ember-qunit:
         specifier: ^8.0.1
-        version: 8.0.1(@ember/test-helpers@3.2.0)(@glint/template@1.2.0)(ember-source@4.10.0)(qunit@2.20.0)
+        version: 8.0.1(@ember/test-helpers@3.2.0)(@glint/template@1.2.0)(ember-source@4.12.0)(qunit@2.20.0)
       ember-resolver:
         specifier: ^11.0.0
-        version: 11.0.1(ember-source@4.10.0)
+        version: 11.0.1(ember-source@4.12.0)
       ember-scoped-css:
         specifier: workspace:*
         version: link:../../ember-scoped-css
       ember-source:
-        specifier: ~4.10.0
-        version: 4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
+        specifier: ~4.12.0
+        version: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
       ember-source-channel-url:
         specifier: ^3.0.0
         version: 3.0.0
@@ -692,7 +692,7 @@ importers:
         version: 3.1.1
       '@ember/test-helpers':
         specifier: ^3.2.0
-        version: 3.2.0(@glint/template@1.2.0)(ember-source@4.10.0)(webpack@5.88.2)
+        version: 3.2.0(@glint/template@1.2.0)(ember-source@4.12.0)(webpack@5.88.2)
       '@embroider/compat':
         specifier: ^3.4.0
         version: 3.4.0(@embroider/core@3.4.2)
@@ -722,7 +722,7 @@ importers:
         version: 5.3.0
       ember-cli-app-version:
         specifier: ^6.0.1
-        version: 6.0.1(ember-source@4.10.0)
+        version: 6.0.1(ember-source@4.12.0)
       ember-cli-babel:
         specifier: ^8.2.0
         version: 8.2.0(@babel/core@7.23.5)
@@ -743,22 +743,22 @@ importers:
         version: 2.1.2(@babel/core@7.23.5)
       ember-modifier:
         specifier: ^4.1.0
-        version: 4.1.0(ember-source@4.10.0)
+        version: 4.1.0(ember-source@4.12.0)
       ember-page-title:
         specifier: ^8.0.0
         version: 8.0.0
       ember-qunit:
         specifier: ^8.0.1
-        version: 8.0.1(@ember/test-helpers@3.2.0)(@glint/template@1.2.0)(ember-source@4.10.0)(qunit@2.20.0)
+        version: 8.0.1(@ember/test-helpers@3.2.0)(@glint/template@1.2.0)(ember-source@4.12.0)(qunit@2.20.0)
       ember-resolver:
         specifier: ^11.0.1
-        version: 11.0.1(ember-source@4.10.0)
+        version: 11.0.1(ember-source@4.12.0)
       ember-scoped-css:
         specifier: workspace:^
         version: link:../../ember-scoped-css
       ember-source:
-        specifier: ~4.10.0
-        version: 4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
+        specifier: ~4.12.0
+        version: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
       ember-template-lint:
         specifier: ^5.11.2
         version: 5.11.2
@@ -2802,7 +2802,7 @@ packages:
       - supports-color
     dev: true
 
-  /@ember/test-helpers@3.2.0(@glint/template@1.2.0)(ember-source@4.10.0)(webpack@5.88.2):
+  /@ember/test-helpers@3.2.0(@glint/template@1.2.0)(ember-source@4.12.0)(webpack@5.88.2):
     resolution: {integrity: sha512-3yWpPsK5O77tUdCwW3HayrAcdlRitIRYMvLIG69Pkal1JMIGdNYVTvJ2R1lenhQh2syd/WFmGM07vQuDAtotQw==}
     engines: {node: 16.* || >= 18}
     peerDependencies:
@@ -2816,28 +2816,7 @@ packages:
       ember-auto-import: 2.7.0(@glint/template@1.2.0)(webpack@5.88.2)
       ember-cli-babel: 7.26.11
       ember-cli-htmlbars: 6.3.0
-      ember-source: 4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
-    transitivePeerDependencies:
-      - '@glint/template'
-      - supports-color
-      - webpack
-    dev: true
-
-  /@ember/test-helpers@3.2.0(ember-source@4.12.0)(webpack@5.88.2):
-    resolution: {integrity: sha512-3yWpPsK5O77tUdCwW3HayrAcdlRitIRYMvLIG69Pkal1JMIGdNYVTvJ2R1lenhQh2syd/WFmGM07vQuDAtotQw==}
-    engines: {node: 16.* || >= 18}
-    peerDependencies:
-      ember-source: ^4.0.0 || ^5.0.0
-    dependencies:
-      '@ember/test-waiters': 3.0.2
-      '@embroider/macros': 1.13.3(@glint/template@1.2.0)
-      '@simple-dom/interface': 1.4.0
-      broccoli-debug: 0.6.5
-      broccoli-funnel: 3.0.8
-      ember-auto-import: 2.7.0(@glint/template@1.2.0)(webpack@5.88.2)
-      ember-cli-babel: 7.26.11
-      ember-cli-htmlbars: 6.3.0
-      ember-source: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(webpack@5.88.2)
+      ember-source: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
     transitivePeerDependencies:
       - '@glint/template'
       - supports-color
@@ -8065,14 +8044,14 @@ packages:
   /electron-to-chromium@1.4.531:
     resolution: {integrity: sha512-H6gi5E41Rn3/mhKlPaT1aIMg/71hTAqn0gYEllSuw9igNWtvQwu185jiCZoZD29n7Zukgh7GVZ3zGf0XvkhqjQ==}
 
-  /ember-async-data@1.0.2(ember-source@4.10.0):
+  /ember-async-data@1.0.2(ember-source@4.12.0):
     resolution: {integrity: sha512-HCnQnnPCV5A7FADoW6/e+48PVxQ1ElatxZeJJoTb2UuklMHK8CpdAvEILVC0qtEeyIEbcG/LyOIxuHK0ja63zQ==}
     peerDependencies:
       ember-source: '>=4.8.4'
     dependencies:
       '@ember/test-waiters': 3.0.2
       '@embroider/addon-shim': 1.8.6
-      ember-source: 4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
+      ember-source: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
     transitivePeerDependencies:
       - supports-color
     dev: false
@@ -8196,14 +8175,14 @@ packages:
       - supports-color
     dev: true
 
-  /ember-cli-app-version@6.0.1(ember-source@4.10.0):
+  /ember-cli-app-version@6.0.1(ember-source@4.12.0):
     resolution: {integrity: sha512-XA1FwkWA5QytmWF0jcJqEr3jcZoiCl9Fb33TZgOVfClL7Voxe+/RwzISEprBRQgbf7j8z1xf8/RJCKfclUy3rQ==}
     engines: {node: 14.* || 16.* || >= 18}
     peerDependencies:
       ember-source: ^3.28.0 || >= 4.0.0
     dependencies:
       ember-cli-babel: 7.26.11
-      ember-source: 4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
+      ember-source: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
       git-repo-info: 2.1.1
     transitivePeerDependencies:
       - supports-color
@@ -8995,7 +8974,7 @@ packages:
       - supports-color
     dev: true
 
-  /ember-modifier@4.1.0(ember-source@4.10.0):
+  /ember-modifier@4.1.0(ember-source@4.12.0):
     resolution: {integrity: sha512-YFCNpEYj6jdyy3EjslRb2ehNiDvaOrXTilR9+ngq+iUqSHYto2zKV0rleiA1XJQ27ELM1q8RihT29U6Lq5EyqQ==}
     peerDependencies:
       ember-source: '*'
@@ -9006,7 +8985,7 @@ packages:
       '@embroider/addon-shim': 1.8.6
       ember-cli-normalize-entity-name: 1.0.0
       ember-cli-string-utils: 1.1.0
-      ember-source: 4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
+      ember-source: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
     transitivePeerDependencies:
       - supports-color
     dev: true
@@ -9036,36 +9015,18 @@ packages:
       - supports-color
     dev: true
 
-  /ember-qunit@8.0.1(@ember/test-helpers@3.2.0)(@glint/template@1.2.0)(ember-source@4.10.0)(qunit@2.20.0):
-    resolution: {integrity: sha512-13PtywHNPTQKkDW4o8QRkJvcdsZr8hRyvh6xh/YLAX8+HaRLd3nPL8mBF4O/Kur/DAj3QWLvjzktZ2uRNGSh3A==}
-    peerDependencies:
-      '@ember/test-helpers': '>=3.0.3'
-      ember-source: '>=4.0.0'
-      qunit: ^2.13.0
-    dependencies:
-      '@ember/test-helpers': 3.2.0(@glint/template@1.2.0)(ember-source@4.10.0)(webpack@5.88.2)
-      '@embroider/addon-shim': 1.8.6
-      '@embroider/macros': 1.13.3(@glint/template@1.2.0)
-      ember-cli-test-loader: 3.1.0
-      ember-source: 4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
-      qunit: 2.20.0
-    transitivePeerDependencies:
-      - '@glint/template'
-      - supports-color
-    dev: true
-
-  /ember-qunit@8.0.1(@ember/test-helpers@3.2.0)(ember-source@4.12.0)(qunit@2.20.0):
+  /ember-qunit@8.0.1(@ember/test-helpers@3.2.0)(@glint/template@1.2.0)(ember-source@4.12.0)(qunit@2.20.0):
     resolution: {integrity: sha512-13PtywHNPTQKkDW4o8QRkJvcdsZr8hRyvh6xh/YLAX8+HaRLd3nPL8mBF4O/Kur/DAj3QWLvjzktZ2uRNGSh3A==}
     peerDependencies:
       '@ember/test-helpers': '>=3.0.3'
       ember-source: '>=4.0.0'
       qunit: ^2.13.0
     dependencies:
-      '@ember/test-helpers': 3.2.0(ember-source@4.12.0)(webpack@5.88.2)
+      '@ember/test-helpers': 3.2.0(@glint/template@1.2.0)(ember-source@4.12.0)(webpack@5.88.2)
       '@embroider/addon-shim': 1.8.6
       '@embroider/macros': 1.13.3(@glint/template@1.2.0)
       ember-cli-test-loader: 3.1.0
-      ember-source: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(webpack@5.88.2)
+      ember-source: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
       qunit: 2.20.0
     transitivePeerDependencies:
       - '@glint/template'
@@ -9090,21 +9051,6 @@ packages:
       - supports-color
     dev: true
 
-  /ember-resolver@11.0.1(ember-source@4.10.0):
-    resolution: {integrity: sha512-ucBk3oM+PR+AfYoSUXeQh8cDQS1sSiEKp4Pcgbew5cFMSqPxJfqd1zyZsfQKNTuyubeGmWxBOyMVSTvX2LeCyg==}
-    engines: {node: 14.* || 16.* || >= 18}
-    peerDependencies:
-      ember-source: ^4.8.3 || >= 5.0.0
-    peerDependenciesMeta:
-      ember-source:
-        optional: true
-    dependencies:
-      ember-cli-babel: 7.26.11
-      ember-source: 4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
-    transitivePeerDependencies:
-      - supports-color
-    dev: true
-
   /ember-resolver@11.0.1(ember-source@4.12.0):
     resolution: {integrity: sha512-ucBk3oM+PR+AfYoSUXeQh8cDQS1sSiEKp4Pcgbew5cFMSqPxJfqd1zyZsfQKNTuyubeGmWxBOyMVSTvX2LeCyg==}
     engines: {node: 14.* || 16.* || >= 18}
@@ -9115,7 +9061,7 @@ packages:
         optional: true
     dependencies:
       ember-cli-babel: 7.26.11
-      ember-source: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(webpack@5.88.2)
+      ember-source: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
     transitivePeerDependencies:
       - supports-color
     dev: true
@@ -9135,7 +9081,7 @@ packages:
       - supports-color
     dev: true
 
-  /ember-resources@6.4.0(@glimmer/component@1.1.2)(@glimmer/tracking@1.1.2)(@glint/template@1.2.0)(ember-source@4.10.0):
+  /ember-resources@6.4.0(@glimmer/component@1.1.2)(@glimmer/tracking@1.1.2)(@glint/template@1.2.0)(ember-source@4.12.0):
     resolution: {integrity: sha512-F5tfwhu8yRrPsMQk5nJWAZJuCi1xvGaTHp3izT+8rwuBXZSvjJAW+EapWNhKR7SYmtail9cPVwh37lcDd6HLXQ==}
     peerDependencies:
       '@ember/test-waiters': ^3.0.0
@@ -9158,8 +9104,8 @@ packages:
       '@glimmer/component': 1.1.2(@babel/core@7.23.5)
       '@glimmer/tracking': 1.1.2
       '@glint/template': 1.2.0
-      ember-async-data: 1.0.2(ember-source@4.10.0)
-      ember-source: 4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
+      ember-async-data: 1.0.2(ember-source@4.12.0)
+      ember-source: 4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2)
     transitivePeerDependencies:
       - supports-color
     dev: false
@@ -9187,46 +9133,7 @@ packages:
       - encoding
     dev: true
 
-  /ember-source@4.10.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2):
-    resolution: {integrity: sha512-Y7+M+vSygMrpq4szsnpik3PxdVVA7ApuwU2L/l9Os+qpPqIKy4hT0Rw/17z4b87HNEX03jv7ueMbgcpxjUf1Kw==}
-    engines: {node: '>= 14.*'}
-    peerDependencies:
-      '@glimmer/component': ^1.1.2
-    dependencies:
-      '@babel/helper-module-imports': 7.22.15
-      '@babel/plugin-transform-block-scoping': 7.23.0(@babel/core@7.23.5)
-      '@ember/edition-utils': 1.2.0
-      '@glimmer/component': 1.1.2(@babel/core@7.23.5)
-      '@glimmer/vm-babel-plugins': 0.84.2(@babel/core@7.23.5)
-      babel-plugin-debug-macros: 0.3.4(@babel/core@7.23.5)
-      babel-plugin-filter-imports: 4.0.0
-      broccoli-concat: 4.2.5
-      broccoli-debug: 0.6.5
-      broccoli-file-creator: 2.1.1
-      broccoli-funnel: 3.0.8
-      broccoli-merge-trees: 4.2.0
-      chalk: 4.1.2
-      ember-auto-import: 2.7.0(@glint/template@1.2.0)(webpack@5.88.2)
-      ember-cli-babel: 7.26.11
-      ember-cli-get-component-path-option: 1.0.0
-      ember-cli-is-package-missing: 1.0.0
-      ember-cli-normalize-entity-name: 1.0.0
-      ember-cli-path-utils: 1.0.0
-      ember-cli-string-utils: 1.1.0
-      ember-cli-typescript-blueprint-polyfill: 0.1.0
-      ember-cli-version-checker: 5.1.2
-      ember-router-generator: 2.0.0
-      inflection: 1.13.4
-      resolve: 1.22.6
-      semver: 7.5.4
-      silent-error: 1.1.1
-    transitivePeerDependencies:
-      - '@babel/core'
-      - '@glint/template'
-      - supports-color
-      - webpack
-
-  /ember-source@4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(webpack@5.88.2):
+  /ember-source@4.12.0(@babel/core@7.23.5)(@glimmer/component@1.1.2)(@glint/template@1.2.0)(webpack@5.88.2):
     resolution: {integrity: sha512-h0lV902A4Mny2eiqXPy15uXXoCc7BnUegE4axLAy4IoxEkJ1o5h0aLJFiB4Tzb1htx8vgHjJz//Y5Jig7NSDTw==}
     engines: {node: '>= 14.*'}
     peerDependencies:
diff --git a/test-apps/classic-app/package.json b/test-apps/classic-app/package.json
index cdab3aae..1a87639f 100644
--- a/test-apps/classic-app/package.json
+++ b/test-apps/classic-app/package.json
@@ -49,7 +49,7 @@
     "ember-resolver": "^11.0.0",
     "ember-scoped-css": "workspace:*",
     "ember-scoped-css-compat": "workspace:*",
-    "ember-source": "~4.10.0",
+    "ember-source": "~4.12.0",
     "ember-style-loader": "github:mainmatter/ember-style-loader#main",
     "ember-template-imports": "^3.4.2",
     "ember-template-lint": "^5.11.2",
diff --git a/test-apps/embroider-app/package.json b/test-apps/embroider-app/package.json
index c7a91d3d..c4323e28 100644
--- a/test-apps/embroider-app/package.json
+++ b/test-apps/embroider-app/package.json
@@ -53,7 +53,7 @@
     "ember-qunit": "^8.0.1",
     "ember-resolver": "^11.0.0",
     "ember-scoped-css": "workspace:*",
-    "ember-source": "~4.10.0",
+    "ember-source": "~4.12.0",
     "ember-source-channel-url": "^3.0.0",
     "ember-style-loader": "github:mainmatter/ember-style-loader#main",
     "ember-template-imports": "^3.4.2",
diff --git a/test-apps/pods-embroider-app/package.json b/test-apps/pods-embroider-app/package.json
index 714c7fe1..defbdb2d 100644
--- a/test-apps/pods-embroider-app/package.json
+++ b/test-apps/pods-embroider-app/package.json
@@ -51,7 +51,7 @@
     "ember-qunit": "^8.0.1",
     "ember-resolver": "^11.0.1",
     "ember-scoped-css": "workspace:^",
-    "ember-source": "~4.10.0",
+    "ember-source": "~4.12.0",
     "ember-template-lint": "^5.11.2",
     "eslint": "^8.49.0",
     "eslint-config-prettier": "^9.0.0",