diff --git a/package.json b/package.json
index 176a759..075db35 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "@babel/eslint-parser": "^7.24.1",
     "@babel/plugin-proposal-decorators": "^7.24.1",
     "@ember/optional-features": "^2.1.0",
-    "@ember/string": "^3.0.1",
+    "@ember/string": "^4.0.0",
     "@ember/test-helpers": "^3.3.0",
     "@embroider/test-setup": "^3.0.3",
     "@glimmer/component": "^1.1.2",
diff --git a/yarn.lock b/yarn.lock
index 990b2b8..ce053b3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1126,12 +1126,10 @@
     mkdirp "^1.0.4"
     silent-error "^1.1.1"
 
-"@ember/string@^3.0.1":
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/@ember/string/-/string-3.1.1.tgz#0a5ac0d1e4925259e41d5c8d55ef616117d47ff0"
-  integrity sha512-UbXJ+k3QOrYN4SRPHgXCqYIJ+yWWUg1+vr0H4DhdQPTy8LJfyqwZ2tc5uqpSSnEXE+/1KopHBE5J8GDagAg5cg==
-  dependencies:
-    ember-cli-babel "^7.26.6"
+"@ember/string@^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@ember/string/-/string-4.0.0.tgz#24fe5cda227c9e6634e6e0b550944a3a13437878"
+  integrity sha512-IMVyVE72twuAMSYcHzWSgtgYTtzlHlKSGW8vEbztnnmkU6uo7kVHmiqSN9R4RkBhzvh0VD4G76Eph+55t3iNIA==
 
 "@ember/test-helpers@^3.3.0":
   version "3.3.1"