diff --git a/package.json b/package.json
index 5271d787..82e2e007 100644
--- a/package.json
+++ b/package.json
@@ -91,7 +91,7 @@
     "ember-page-title": "^7.0.0",
     "ember-qunit": "^6.0.0",
     "ember-resolver": "^9.0.1",
-    "ember-source": "4.12.0",
+    "ember-source": "4.12.3",
     "ember-source-channel-url": "^3.0.0",
     "ember-template-lint": "^5.2.0",
     "ember-try": "^2.0.0",
diff --git a/yarn.lock b/yarn.lock
index 0b00a416..2336f5a5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4975,15 +4975,16 @@ ember-source-channel-url@^3.0.0:
   dependencies:
     node-fetch "^2.6.0"
 
-ember-source@4.12.0:
-  version "4.12.0"
-  resolved "https://registry.yarnpkg.com/ember-source/-/ember-source-4.12.0.tgz#cc4873292bf8fa76b81f394852a55c0400d333c6"
-  integrity sha512-h0lV902A4Mny2eiqXPy15uXXoCc7BnUegE4axLAy4IoxEkJ1o5h0aLJFiB4Tzb1htx8vgHjJz//Y5Jig7NSDTw==
+ember-source@4.12.3:
+  version "4.12.3"
+  resolved "https://registry.yarnpkg.com/ember-source/-/ember-source-4.12.3.tgz#6c401f6a856bb2f7f2871f56d46e7496f97e936a"
+  integrity sha512-UuFpMWf931pEWBPuujkaMYhsoPvFyZc+tMYjlUn7um20uL+hWs+k2n/TxMVuxydSzJLnxrXz81nTwbYIlgRWdw==
   dependencies:
     "@babel/helper-module-imports" "^7.16.7"
     "@babel/plugin-transform-block-scoping" "^7.20.5"
     "@ember/edition-utils" "^1.2.0"
     "@glimmer/vm-babel-plugins" "0.84.2"
+    "@simple-dom/interface" "^1.4.0"
     babel-plugin-debug-macros "^0.3.4"
     babel-plugin-filter-imports "^4.0.0"
     broccoli-concat "^4.2.5"