diff --git a/pkgs/applications/networking/cluster/terraform-providers/update-provider b/pkgs/applications/networking/cluster/terraform-providers/update-provider
index fb506cefbe06..482da6a60275 100755
--- a/pkgs/applications/networking/cluster/terraform-providers/update-provider
+++ b/pkgs/applications/networking/cluster/terraform-providers/update-provider
@@ -129,7 +129,7 @@ if [[ ${old_version} == "${version}" && ${force} != 1 && -z ${vendorSha256} && $
   echo_provider "already at version ${version}"
   exit
 fi
-if [[ ${version} =~ (alpha|beta|pre) && ${force} != 1 ]]; then
+if [[ ${version} =~ [[:alpha:]] && ${force} != 1 ]]; then
   echo_provider "not updating to unstable version ${version}"
   exit
 fi