diff --git a/librarian.yaml b/librarian.yaml
index 0eccf428f877..c42dc7c36899 100644
--- a/librarian.yaml
+++ b/librarian.yaml
@@ -20,7 +20,7 @@ sources:
 tools:
   gem:
     - name: gapic-generator-cloud
-      version: 0.49.0
+      version: 0.51.0
     - name: grpc-tools
       version: 1.78.1
   protoc: