diff --git a/github/check.cstate.update b/github/check.cstate.update
index ab7c64e..75c6117 100755
--- a/github/check.cstate.update
+++ b/github/check.cstate.update
@@ -44,7 +44,7 @@ cstate_url="${1}"
 cstate_current_version=$(curl --insecure --silent "${cstate_url}" | grep -E 'meta.*generator.*cState.*github.com' | sed 's;.*generator.*content.*cState \(v.*\) - https.*github.com.*;\1;')
 
 cstate_repo_url="https://github.com/cstate/cstate"
-cstate_new_version=$("${script_wd}"/releasetags "${cstate_repo_url}" | head -n1)
+cstate_new_version=$("${script_wd}"/releasetags "${cstate_repo_url}" | grep -vE -- '(dev|rc)' | head -n1)
 
 cstate_new_version_file="/tmp/.github.cstate.upgrade"
 # }}}