diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index e6c78dfa..ac077ca4 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -102,7 +102,7 @@ jobs:
               "attachments": [
                 {
                   "pretext": "Vulnerability scan outputs for $(date +'%Y-%m-%d %H:%M:%S')",
-                  "color": "$COLOR",
+                  "color": "${{ COLOR }}",
                   "fields": [
                     {
                       "title": "Status",