diff --git a/Jenkinsfile b/Jenkinsfile
index 60c0920..4dcfcef 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -29,7 +29,7 @@ pipeline {
                             set -e
                             VERSION=$(sed -n 's/^version=//p' "$VERSION_FILE")
 
-                            if [[ ! "$VERSION" =~ ^[0-9]+(\.[0-9]+)*(-[A-Za-z]+)?$ ]]; then
+                            if [[ ! "$VERSION" =~ ^[0-9]+(.[0-9]+)*(-[A-Za-z]+)?$ ]]; then
                                 echo "Invalid version format: $VERSION" >&2
                                 exit 1
                             fi