diff --git a/verify.go b/verify.go
index d503869..3c2899a 100644
--- a/verify.go
+++ b/verify.go
@@ -38,7 +38,7 @@ func (frc *Client) VerifyCaptchaResponse(ctx context.Context, captchaResponse st
 
 	req.Header.Set("Content-Type", "application/json")
 	req.Header.Set("X-Api-Key", frc.APIKey)
-	req.Header.Set("X-Frc-Sdk", fmt.Sprintf("friendly-captcha-go@%s", Version))
+	req.Header.Set("Frc-Sdk", fmt.Sprintf("friendly-captcha-go@%s", Version))
 
 	resp, err := frc.HTTPClient.Do(req)
 	if err != nil {
diff --git a/version.go b/version.go
index 50e314d..080e90f 100644
--- a/version.go
+++ b/version.go
@@ -1,3 +1,3 @@
 package friendlycaptcha
 
-var Version = "0.2.4"
+var Version = "0.2.5"