diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 61ec73e3..ecc7166e 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -54,7 +54,7 @@ jobs:
         with:
           repository: catchorg/Catch2.git
           path: Catch2
-          ref: v.3.4.0
+          ref: v3.4.0
 
       - name: Build Catch2
         if: env.USE_CONAN != '1'