diff --git a/vulcanexus.repos b/vulcanexus.repos
index c171d681..1135f087 100644
--- a/vulcanexus.repos
+++ b/vulcanexus.repos
@@ -86,7 +86,7 @@ repositories:
   eProsima/Vulcanexus-Base:
     type: git
     url: https://github.com/eProsima/vulcanexus.git
-    version: 3.1.1
+    version: v3.1.1
   ros2/ROSIDL-TypeSupport-FastRTPS:
     type: git
     url: https://github.com/ros2/rosidl_typesupport_fastrtps.git