diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 9c4916fa..3e12a614 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -310,8 +310,8 @@ importers:
         specifier: ^2.7.0
         version: 2.7.2(@glint/template@1.3.0)(webpack@5.90.0)
       ember-cli:
-        specifier: ~5.5.0
-        version: 5.5.0
+        specifier: ~5.6.0
+        version: 5.6.0
       ember-cli-app-version:
         specifier: ^6.0.1
         version: 6.0.1(ember-source@5.6.0)
@@ -323,7 +323,7 @@ importers:
         version: 3.0.0
       ember-cli-dependency-checker:
         specifier: ^3.3.2
-        version: 3.3.2(ember-cli@5.5.0)
+        version: 3.3.2(ember-cli@5.6.0)
       ember-cli-htmlbars:
         specifier: ^6.3.0
         version: 6.3.0
@@ -492,7 +492,7 @@ packages:
     resolution: {integrity: sha512-lN85QRR+5IbYrMWM6Y4pE/noaQtg4pNiqeNGX60eqOfo6gtEj6uw/JagelB8vVztSd7R6M5n1+PQkDbHbBRU4g==}
     engines: {node: '>=6.9.0'}
     dependencies:
-      '@babel/types': 7.23.0
+      '@babel/types': 7.23.9
       '@jridgewell/gen-mapping': 0.3.3
       '@jridgewell/trace-mapping': 0.3.22
       jsesc: 2.5.2
@@ -1627,13 +1627,13 @@ packages:
     engines: {node: '>=6.9.0'}
     dependencies:
       '@babel/code-frame': 7.23.5
-      '@babel/generator': 7.23.0
+      '@babel/generator': 7.23.6
       '@babel/helper-environment-visitor': 7.22.20
       '@babel/helper-function-name': 7.23.0
       '@babel/helper-hoist-variables': 7.22.5
       '@babel/helper-split-export-declaration': 7.22.6
       '@babel/parser': 7.23.9
-      '@babel/types': 7.23.0
+      '@babel/types': 7.23.9
       debug: 4.3.4
       globals: 11.12.0
     transitivePeerDependencies:
@@ -6244,14 +6244,14 @@ packages:
       - supports-color
     dev: true
 
-  /ember-cli-dependency-checker@3.3.2(ember-cli@5.5.0):
+  /ember-cli-dependency-checker@3.3.2(ember-cli@5.6.0):
     resolution: {integrity: sha512-PwkrW5oYsdPWwt+0Tojufmv/hxVETTjkrEdK7ANQB2VSnqpA5UcYubwpQM9ONuR2J8wyNDMwEHlqIrk/FYtBsQ==}
     engines: {node: '>= 6'}
     peerDependencies:
       ember-cli: ^3.2.0 || >=4.0.0
     dependencies:
       chalk: 2.4.2
-      ember-cli: 5.5.0
+      ember-cli: 5.6.0
       find-yarn-workspace-root: 1.2.1
       is-git-url: 1.0.0
       resolve: 1.22.8
@@ -6468,8 +6468,8 @@ packages:
     transitivePeerDependencies:
       - supports-color
 
-  /ember-cli@5.5.0:
-    resolution: {integrity: sha512-D3Q+mq5yOpZB1pJu4aOnVj5+LTwXmd5sJhXqZxc9Y0JFRYinl4h0HHGUMUvtV7obo811gf13ObDAaUmSfVPQbQ==}
+  /ember-cli@5.6.0:
+    resolution: {integrity: sha512-9ARiTnNgQDX6RPC37PjlEc58/e8p7pgmNu6GcmARq4iBLeTWWW+2mgw3HKoFd91ob1EdRiglskLYzgboRxtBBw==}
     engines: {node: '>= 18'}
     hasBin: true
     dependencies:
diff --git a/test-app/package.json b/test-app/package.json
index bc7be370..c5a0c935 100644
--- a/test-app/package.json
+++ b/test-app/package.json
@@ -66,7 +66,7 @@
     "broccoli-asset-rev": "^3.0.0",
     "concurrently": "^8.2.2",
     "ember-auto-import": "^2.7.0",
-    "ember-cli": "~5.5.0",
+    "ember-cli": "~5.6.0",
     "ember-cli-app-version": "^6.0.1",
     "ember-cli-babel": "^8.2.0",
     "ember-cli-clean-css": "^3.0.0",