diff --git a/addon/package.json b/addon/package.json
index e7847ad5..46c2f5c9 100644
--- a/addon/package.json
+++ b/addon/package.json
@@ -67,7 +67,7 @@
     "@babel/plugin-transform-typescript": "^7.25.7",
     "@babel/runtime": "^7.25.7",
     "@embroider/addon-dev": "^6.0.1",
-    "@glint/core": "^1.4.0",
+    "@glint/core": "^1.5.0",
     "@glint/environment-ember-loose": "^1.4.0",
     "@glint/environment-ember-template-imports": "^1.4.0",
     "@glint/template": "^1.5.0",
diff --git a/package.json b/package.json
index 6a03793d..f55328b1 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "test:ember-compatibility": "yarn workspace test-app run test:ember-compatibility"
   },
   "devDependencies": {
-    "@glint/core": "^1.2.1",
+    "@glint/core": "^1.5.0",
     "@release-it-plugins/lerna-changelog": "^7.0.0",
     "@release-it-plugins/workspaces": "^4.2.0",
     "concurrently": "^9.0.1",
diff --git a/yarn.lock b/yarn.lock
index 802d2069..e44f4bba 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1741,10 +1741,10 @@
     "@glimmer/interfaces" "0.92.3"
     "@glimmer/util" "0.92.3"
 
-"@glint/core@^1.2.1", "@glint/core@^1.4.0":
-  version "1.4.0"
-  resolved "https://registry.yarnpkg.com/@glint/core/-/core-1.4.0.tgz#cc977d295788dd25fa3049830abc2c8044ec4a74"
-  integrity sha512-nq27a/1R6kc3lsuciz8z9IZO1NQCbNkEBxf5KJI7AUrnps6RzQzmq3pmwO24zQYmFcH4sqpod8fleNIpg8YEqg==
+"@glint/core@^1.5.0":
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/@glint/core/-/core-1.5.0.tgz#e9611841c3953c6e998103dfd4c2d35f999c184c"
+  integrity sha512-oo6ZDwX2S0Qqjai/CJH72LHg1U6rvzH1IyiFlWofaFiu/nSg04CDWZuJNPC3r47jz1+SaSI+mVMUaKJznzxzzQ==
   dependencies:
     "@glimmer/syntax" "^0.84.3"
     escape-string-regexp "^4.0.0"