diff --git a/core/request_option.go b/core/request_option.go
index 631fefe..ffb00c5 100644
--- a/core/request_option.go
+++ b/core/request_option.go
@@ -61,8 +61,8 @@ func (r *RequestOptions) cloneHeader() http.Header {
 	headers := r.HTTPHeader.Clone()
 	headers.Set("X-Fern-Language", "Go")
 	headers.Set("X-Fern-SDK-Name", "github.com/cohere-ai/cohere-go/v2")
-	headers.Set("X-Fern-SDK-Version", "v2.15.2")
-	headers.Set("User-Agent", "github.com/cohere-ai/cohere-go/2.15.2")
+	headers.Set("X-Fern-SDK-Version", "v2.15.3")
+	headers.Set("User-Agent", "github.com/cohere-ai/cohere-go/2.15.3")
 	return headers
 }