diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a8abb96..bbded07 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   build-windows:
-    if: contains(github.event.head_commit.message, '^v[0-9]+\.[0-9]+\.[0-9]+$')
+    if: github.event.head_commit.message =~ '^v[0-9]+\.[0-9]+\.[0-9]+$'
     runs-on: windows-2019
 
     steps: