diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1faa211..22faee4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -19,7 +19,7 @@ jobs:
         id: next_version
         run: |
           OLD_VERSION=$(git describe --tags --abbrev=0)
-          NEW_VERSION=4 + 1
+          NEW_VERSION=$(($OLD_VERSION + 1))
           echo $NEW_VERSION