diff --git a/.changeset/spicy-carrots-remember.md b/.changeset/spicy-carrots-remember.md
new file mode 100644
index 00000000000..c687ba72283
--- /dev/null
+++ b/.changeset/spicy-carrots-remember.md
@@ -0,0 +1,5 @@
+---
+"@primer/react": patch
+---
+
+Update `@primer/behaviors` for better ESM compatibility
diff --git a/jest.config.js b/jest.config.js
index f896a76cb42..6926a1ecac7 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -9,7 +9,5 @@ module.exports = {
     '<rootDir>/src/utils/test-deprecations.tsx',
     '<rootDir>/src/utils/test-helpers.tsx'
   ],
-  testMatch: ['<rootDir>/(src|codemods)/**/*.test.[jt]s?(x)', '!**/*.types.test.[jt]s?(x)'],
-  // @primer/behaviors is ESM, so needs to be transformed
-  transformIgnorePatterns: ['node_modules/(?!@primer/behaviors)']
+  testMatch: ['<rootDir>/(src|codemods)/**/*.test.[jt]s?(x)', '!**/*.types.test.[jt]s?(x)']
 }
diff --git a/package-lock.json b/package-lock.json
index 149f5b67255..65555b2a532 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "35.1.0",
       "license": "MIT",
       "dependencies": {
-        "@primer/behaviors": "1.1.0",
+        "@primer/behaviors": "1.1.1",
         "@primer/octicons-react": "16.1.1",
         "@primer/primitives": "7.6.0",
         "@radix-ui/react-polymorphic": "0.0.14",
@@ -5643,9 +5643,9 @@
       }
     },
     "node_modules/@primer/behaviors": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@primer/behaviors/-/behaviors-1.1.0.tgz",
-      "integrity": "sha512-Ej2OUc3ZIFaR7WwIUqESO1DTzmpb7wc8xbTVRT9s52jZQDjN7g5iljoK3ocYZm+BIAcKn3MvcwB42hEk4Ga4xQ=="
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@primer/behaviors/-/behaviors-1.1.1.tgz",
+      "integrity": "sha512-wvF1PYjyxKNTr6+5w4uR5Gkz53t1fsRDgKjWxDKk7wmlh0cwiILBo4dDFjjVhWRF1mBSjaIxxJGB4WGaP7ct2Q=="
     },
     "node_modules/@primer/octicons-react": {
       "version": "16.1.1",
@@ -39281,9 +39281,9 @@
       "dev": true
     },
     "@primer/behaviors": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@primer/behaviors/-/behaviors-1.1.0.tgz",
-      "integrity": "sha512-Ej2OUc3ZIFaR7WwIUqESO1DTzmpb7wc8xbTVRT9s52jZQDjN7g5iljoK3ocYZm+BIAcKn3MvcwB42hEk4Ga4xQ=="
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@primer/behaviors/-/behaviors-1.1.1.tgz",
+      "integrity": "sha512-wvF1PYjyxKNTr6+5w4uR5Gkz53t1fsRDgKjWxDKk7wmlh0cwiILBo4dDFjjVhWRF1mBSjaIxxJGB4WGaP7ct2Q=="
     },
     "@primer/octicons-react": {
       "version": "16.1.1",
diff --git a/package.json b/package.json
index a131dec5295..816bebf8b80 100644
--- a/package.json
+++ b/package.json
@@ -75,7 +75,7 @@
     "npm": ">=7"
   },
   "dependencies": {
-    "@primer/behaviors": "1.1.0",
+    "@primer/behaviors": "1.1.1",
     "@primer/octicons-react": "16.1.1",
     "@primer/primitives": "7.6.0",
     "@radix-ui/react-polymorphic": "0.0.14",