diff --git a/.github/workflows/create-release.yml b/.github/workflows/create-release.yml
index 00a529a..d612b6a 100644
--- a/.github/workflows/create-release.yml
+++ b/.github/workflows/create-release.yml
@@ -95,7 +95,7 @@ jobs:
           RELEASE_ARGS='--generate-notes'
           if [[ "${{ github.ref_name }}" == "main" ]]; then
             # TODO: use version
-            RELEASE_SUFFIX="main-$(date -u "+%Y-%m-%dT%H:%M")"
+            RELEASE_SUFFIX="main-$(date -u "+%Y-%m-%d___%H-%M")"
           else
             RELEASE_SUFFIX=${{ github.ref_name }}-$(date -u "+%Y-%m-%d___%H-%M")
             RELEASE_ARGS="${RELEASE_ARGS} --draft"