diff --git a/internal/version.go b/internal/version.go
index cd8cd3fdd..073140ba5 100644
--- a/internal/version.go
+++ b/internal/version.go
@@ -8,7 +8,7 @@ const (
 	// Server validates if SDKVersion fits its supported range and rejects request if it doesn't.
 	//
 	// Exposed as: [go.temporal.io/sdk/temporal.SDKVersion]
-	SDKVersion = "1.42.0"
+	SDKVersion = "1.43.0"
 
 	// SDKName represents the name of the SDK.
 	SDKName = clientNameHeaderValue