diff --git a/install.sh b/install.sh
index 2a9bb3a..6832462 100755
--- a/install.sh
+++ b/install.sh
@@ -26,7 +26,7 @@ function download_files() {
   done
 }
 
-GIT_TAG=$(curl -fsSL "$API_ENDPOINT/tags" | grep -o '{"name":"[^"]*"' | sed 's/^{"name":"//;s/"$//' | sort --version-sort | tail -n 1)
+GIT_TAG=$(curl -fsSL "$API_ENDPOINT/tags" | grep -o '{"name":"[^"]*"' | sed 's/^{"name":"//;s/"$//' | grep -E '^v[0-9]+' | sort --version-sort | tail -n 1)
 if [ -n "$GIT_TAG" ]; then
   echo "Info: installing pbc version $GIT_TAG"
 else