diff --git a/ember-phone-input/package.json b/ember-phone-input/package.json
index 051bc951..9166270e 100644
--- a/ember-phone-input/package.json
+++ b/ember-phone-input/package.json
@@ -59,7 +59,7 @@
     "@babel/plugin-syntax-decorators": "7.22.10",
     "@babel/preset-typescript": "7.23.0",
     "@embroider/addon-dev": "4.1.0",
-    "@glint/core": "1.2.0",
+    "@glint/core": "1.2.1",
     "@glint/environment-ember-loose": "1.2.0",
     "@glint/template": "1.2.0",
     "@glimmer/component": "1.1.2",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 4fb8f504..5a3419bb 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -64,8 +64,8 @@ importers:
         specifier: 1.1.2
         version: 1.1.2(@babel/core@7.23.0)
       '@glint/core':
-        specifier: 1.2.0
-        version: 1.2.0(typescript@5.2.2)
+        specifier: 1.2.1
+        version: 1.2.1(typescript@5.2.2)
       '@glint/environment-ember-loose':
         specifier: 1.2.0
         version: 1.2.0(@glimmer/component@1.1.2)(@glint/template@1.2.0)(ember-cli-htmlbars@6.3.0)(ember-modifier@4.1.0)
@@ -149,8 +149,8 @@ importers:
         specifier: 1.1.2
         version: 1.1.2
       '@glint/core':
-        specifier: 1.2.0
-        version: 1.2.0(typescript@5.2.2)
+        specifier: 1.2.1
+        version: 1.2.1(typescript@5.2.2)
       '@glint/environment-ember-loose':
         specifier: 1.2.0
         version: 1.2.0(@glimmer/component@1.1.2)(@glint/template@1.2.0)(ember-cli-htmlbars@6.3.0)(ember-modifier@4.1.0)
@@ -2452,8 +2452,8 @@ packages:
       '@glimmer/interfaces': 0.84.2
       '@glimmer/util': 0.84.2
 
-  /@glint/core@1.2.0(typescript@5.2.2):
-    resolution: {integrity: sha512-dugZ4wSWOubC9O4+pxhX1EgTf7rVi1ZNYsZ66XKEKPY2JGxAtI5dqyjl4BsX8SkbGKKDKeMKIZjcaDsz17VMqw==}
+  /@glint/core@1.2.1(typescript@5.2.2):
+    resolution: {integrity: sha512-25Zn65aLSN1M7s0D950sTNElZYRqa6HFA0xcT03iI/vQd1F6c3luMAXbFrsTSHlktZx2dqJ38c2dUnZJQBQgMw==}
     hasBin: true
     peerDependencies:
       typescript: '>=4.8.0'
@@ -2466,7 +2466,7 @@ packages:
       uuid: 8.3.2
       vscode-languageserver: 8.1.0
       vscode-languageserver-textdocument: 1.0.11
-      vscode-uri: 3.0.7
+      vscode-uri: 3.0.8
       yargs: 17.7.2
     transitivePeerDependencies:
       - supports-color
@@ -18733,8 +18733,8 @@ packages:
       vscode-languageserver-protocol: 3.17.3
     dev: true
 
-  /vscode-uri@3.0.7:
-    resolution: {integrity: sha512-eOpPHogvorZRobNqJGhapa0JdwaxpjVvyBp0QIUMRMSf8ZAlqOdEquKuRmw9Qwu0qXtJIWqFtMkmvJjUZmMjVA==}
+  /vscode-uri@3.0.8:
+    resolution: {integrity: sha512-AyFQ0EVmsOZOlAnxoFOGOq1SQDWAB7C6aqMGS23svWAllfOaxbuFvcT8D1i8z3Gyn8fraVeZNNmN6e9bxxXkKw==}
     dev: true
 
   /w3c-hr-time@1.0.2:
diff --git a/test-app/package.json b/test-app/package.json
index e343ba4f..06acd92f 100644
--- a/test-app/package.json
+++ b/test-app/package.json
@@ -30,7 +30,7 @@
     "@embroider/test-setup": "3.0.1",
     "@glimmer/component": "1.1.2",
     "@glimmer/tracking": "1.1.2",
-    "@glint/core": "1.2.0",
+    "@glint/core": "1.2.1",
     "@glint/environment-ember-loose": "1.2.0",
     "@glint/template": "1.2.0",
     "@tsconfig/ember": "3.0.1",