diff --git a/src/index.test.ts b/src/index.test.ts
index fb3677d..ff1e6a8 100644
--- a/src/index.test.ts
+++ b/src/index.test.ts
@@ -1382,7 +1382,7 @@ test('Should add `x-unleash` headers', async () => {
 
     const expectedHeaders = {
         // will be replaced at build time with the actual version
-        'x-unleash-sdk': 'unleash-js@__VERSION__',
+        'x-unleash-sdk': 'unleash-client-js:__VERSION__',
         'x-unleash-connection-id': expect.stringMatching(uuidFormat),
         'x-unleash-appname': appName,
     };
diff --git a/src/version.ts b/src/version.ts
index 896c627..de28b7c 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const sdkVersion = `unleash-js@__VERSION__`;
+export const sdkVersion = `unleash-client-js:__VERSION__`;