diff --git a/test/fixtures/templates/good/resources/lambda/required_properties.yaml b/test/fixtures/templates/good/resources/lambda/required_properties.yaml
index 146d75b0f2..0e3ffa4071 100644
--- a/test/fixtures/templates/good/resources/lambda/required_properties.yaml
+++ b/test/fixtures/templates/good/resources/lambda/required_properties.yaml
@@ -19,7 +19,7 @@ Resources:
         ZipFile: |
           import { LambdaClient } from '@aws-sdk/client-lambda';
           exports.handler = function(event, context) {}
-      Runtime: nodejs20.x
+      Runtime: nodejs22.x
   Function3: # image deployment
     Type: AWS::Lambda::Function
     Properties:
diff --git a/test/fixtures/templates/good/transform.yaml b/test/fixtures/templates/good/transform.yaml
index 155719b287..c10da2a191 100644
--- a/test/fixtures/templates/good/transform.yaml
+++ b/test/fixtures/templates/good/transform.yaml
@@ -6,7 +6,7 @@ Resources:
     Type: AWS::Serverless::Function
     Properties:
       Handler: index.handler
-      Runtime: nodejs20.x
+      Runtime: nodejs22.x
       CodeUri: 's3://testBucket/mySourceCode.zip'
   ExampleLayer:
     Type: AWS::Serverless::LayerVersion
diff --git a/test/fixtures/templates/good/transform/function_use_s3_uri.yaml b/test/fixtures/templates/good/transform/function_use_s3_uri.yaml
index cb2119c780..f09f54f9e4 100644
--- a/test/fixtures/templates/good/transform/function_use_s3_uri.yaml
+++ b/test/fixtures/templates/good/transform/function_use_s3_uri.yaml
@@ -18,7 +18,7 @@ Resources:
     Properties:
       FunctionName: !Sub "my-custom-authorizer-${AWS::Region}"
       Description: Custom authorizer for APIGW
-      Runtime: nodejs20.x
+      Runtime: nodejs22.x
       Handler: index.handler
       CodeUri: !Sub "s3://custom-authz-${AWS::AccountId}-${AWS::Region}/function-v1.0.zip"
       Policies:
diff --git a/test/fixtures/templates/good/transform/function_using_image.yaml b/test/fixtures/templates/good/transform/function_using_image.yaml
index b385eb0639..e85bfa9db1 100644
--- a/test/fixtures/templates/good/transform/function_using_image.yaml
+++ b/test/fixtures/templates/good/transform/function_using_image.yaml
@@ -6,6 +6,6 @@ Resources:
     Properties:
       PackageType: Image
     Metadata:
-      DockerTag: nodejs20.x-v1
+      DockerTag: nodejs22.x-v1
       DockerContext: ./hello-world
       Dockerfile: Dockerfile
diff --git a/test/fixtures/templates/good/transform/list_transform_many.yaml b/test/fixtures/templates/good/transform/list_transform_many.yaml
index 3cf54216dd..dd726672db 100644
--- a/test/fixtures/templates/good/transform/list_transform_many.yaml
+++ b/test/fixtures/templates/good/transform/list_transform_many.yaml
@@ -5,7 +5,7 @@ Transform:
 Globals:
   Function:
     Timeout: 3
-    Runtime: nodejs20.x
+    Runtime: nodejs22.x
     Environment:
       Variables:
         VARIABLE: VALUE
diff --git a/test/fixtures/templates/good/transform_serverless_api.yaml b/test/fixtures/templates/good/transform_serverless_api.yaml
index 98bbe64907..5b1ceb231d 100644
--- a/test/fixtures/templates/good/transform_serverless_api.yaml
+++ b/test/fixtures/templates/good/transform_serverless_api.yaml
@@ -6,7 +6,7 @@ Resources:
     Type: AWS::Serverless::Function
     Properties:
       Handler: index.handler
-      Runtime: nodejs20.x
+      Runtime: nodejs22.x
       CodeUri: 's3://testBucket/mySourceCode.zip'
       AutoPublishAlias: live
       DeploymentPreference:
diff --git a/test/fixtures/templates/good/transform_serverless_function.yaml b/test/fixtures/templates/good/transform_serverless_function.yaml
index 446b73ec17..47439fb580 100644
--- a/test/fixtures/templates/good/transform_serverless_function.yaml
+++ b/test/fixtures/templates/good/transform_serverless_function.yaml
@@ -10,7 +10,7 @@ Resources:
     Type: AWS::Serverless::Function
     Properties:
       Handler: index.handler
-      Runtime: nodejs20.x
+      Runtime: nodejs22.x
       CodeUri: 's3://testBucket/mySourceCode.zip'
       AutoPublishAlias: live
       DeploymentPreference: