diff --git a/packages/adapter/package.json b/packages/adapter/package.json
index 471a6458b3d..6ff2e03cfb2 100644
--- a/packages/adapter/package.json
+++ b/packages/adapter/package.json
@@ -109,7 +109,7 @@
     "@ember/test-waiters": "^3.1.0",
     "@ember/string": "^3.1.1",
     "@glimmer/component": "^1.1.2",
-    "decorator-transforms": "^1.1.0",
+    "decorator-transforms": "^1.2.1",
     "@types/jquery": "^3.5.29",
     "@warp-drive/core-types": "workspace:0.0.0-alpha.50",
     "@warp-drive/internal-config": "workspace:5.4.0-alpha.64",
diff --git a/packages/debug/package.json b/packages/debug/package.json
index bfe0cceb6dc..f4aebd24255 100644
--- a/packages/debug/package.json
+++ b/packages/debug/package.json
@@ -94,7 +94,7 @@
     "@warp-drive/internal-config": "workspace:5.4.0-alpha.64",
     "ember-source": "~5.7.0",
     "ember-inflector": "^4.0.2",
-    "decorator-transforms": "^1.1.0",
+    "decorator-transforms": "^1.2.1",
     "pnpm-sync-dependencies-meta-injected": "0.0.10",
     "typescript": "^5.4.5",
     "vite": "^5.2.11"
diff --git a/packages/ember/package.json b/packages/ember/package.json
index c0bb09eaefd..f75b16b9b3d 100644
--- a/packages/ember/package.json
+++ b/packages/ember/package.json
@@ -88,7 +88,7 @@
     "@glint/environment-ember-loose": "^1.4.0",
     "@glint/environment-ember-template-imports": "^1.4.0",
     "@glint/template": "^1.4.0",
-    "decorator-transforms": "^1.1.0",
+    "decorator-transforms": "^1.2.1",
     "@embroider/addon-dev": "^4.3.1",
     "@ember-data/request": "workspace:5.4.0-alpha.64",
     "@ember-data/store": "workspace:5.4.0-alpha.64",
diff --git a/packages/model/package.json b/packages/model/package.json
index 8883bb3a3d9..29cc13f0d94 100644
--- a/packages/model/package.json
+++ b/packages/model/package.json
@@ -123,7 +123,7 @@
     "@glimmer/component": "^1.1.2",
     "@warp-drive/core-types": "workspace:0.0.0-alpha.50",
     "@warp-drive/internal-config": "workspace:5.4.0-alpha.64",
-    "decorator-transforms": "^1.1.0",
+    "decorator-transforms": "^1.2.1",
     "ember-inflector": "^4.0.2",
     "ember-source": "~5.7.0",
     "expect-type": "^0.19.0",
diff --git a/packages/serializer/package.json b/packages/serializer/package.json
index 9bcedcf7f6f..967f10dc02a 100644
--- a/packages/serializer/package.json
+++ b/packages/serializer/package.json
@@ -100,7 +100,7 @@
     "@glimmer/component": "^1.1.2",
     "@warp-drive/core-types": "workspace:0.0.0-alpha.50",
     "@warp-drive/internal-config": "workspace:5.4.0-alpha.64",
-    "decorator-transforms": "^1.1.0",
+    "decorator-transforms": "^1.2.1",
     "ember-inflector": "^4.0.2",
     "ember-source": "~5.7.0",
     "pnpm-sync-dependencies-meta-injected": "0.0.10",
diff --git a/packages/store/package.json b/packages/store/package.json
index a00bf8cc077..23819146fc1 100644
--- a/packages/store/package.json
+++ b/packages/store/package.json
@@ -76,7 +76,7 @@
     "@glimmer/component": "^1.1.2",
     "@warp-drive/core-types": "workspace:0.0.0-alpha.50",
     "@warp-drive/internal-config": "workspace:5.4.0-alpha.64",
-    "decorator-transforms": "^1.1.0",
+    "decorator-transforms": "^1.2.1",
     "ember-source": "~5.7.0",
     "expect-type": "^0.19.0",
     "pnpm-sync-dependencies-meta-injected": "0.0.10",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c9629a43f70..17f658b7de5 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -485,7 +485,7 @@ importers:
         specifier: workspace:5.4.0-alpha.64
         version: link:../../config
       decorator-transforms:
-        specifier: ^1.1.0
+        specifier: ^1.2.1
         version: 1.2.1(@babel/core@7.24.5)
       ember-inflector:
         specifier: ^4.0.2
@@ -713,7 +713,7 @@ importers:
         specifier: workspace:5.4.0-alpha.64
         version: link:../../config
       decorator-transforms:
-        specifier: ^1.1.0
+        specifier: ^1.2.1
         version: 1.2.1(@babel/core@7.24.5)
       ember-inflector:
         specifier: ^4.0.2
@@ -885,7 +885,7 @@ importers:
         specifier: ^2.2.1
         version: 2.2.2
       decorator-transforms:
-        specifier: ^1.1.0
+        specifier: ^1.2.1
         version: 1.2.1(@babel/core@7.24.5)
       ember-provide-consume-context:
         specifier: ^0.3.1
@@ -1310,7 +1310,7 @@ importers:
         specifier: workspace:5.4.0-alpha.64
         version: link:../../config
       decorator-transforms:
-        specifier: ^1.1.0
+        specifier: ^1.2.1
         version: 1.2.1(@babel/core@7.24.5)
       ember-inflector:
         specifier: ^4.0.2
@@ -1757,7 +1757,7 @@ importers:
         specifier: workspace:5.4.0-alpha.64
         version: link:../../config
       decorator-transforms:
-        specifier: ^1.1.0
+        specifier: ^1.2.1
         version: 1.2.1(@babel/core@7.24.5)
       ember-inflector:
         specifier: ^4.0.2
@@ -1835,7 +1835,7 @@ importers:
         specifier: workspace:5.4.0-alpha.64
         version: link:../../config
       decorator-transforms:
-        specifier: ^1.1.0
+        specifier: ^1.2.1
         version: 1.2.1(@babel/core@7.24.5)
       ember-source:
         specifier: ~5.7.0