diff --git a/hack/tag_release.sh b/hack/tag_release.sh
index 4870c16218..dbd935fc2e 100644
--- a/hack/tag_release.sh
+++ b/hack/tag_release.sh
@@ -23,7 +23,7 @@ fi
 
 readonly version=$1
 readonly tag="v${version}"
-if [[ ! "${version}" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+if [[ ! "${version}" =~ ^[0-9]+\.[0-9]+\.[0-9a-z\.\-]+$ ]]; then
   echo "supplied version does not match expectations: ${version}"
   exit 2
 fi