diff --git a/action.yaml b/action.yaml
index a6f964f..50ad708 100644
--- a/action.yaml
+++ b/action.yaml
@@ -68,8 +68,8 @@ runs:
     - ${{ inputs.listener_services_only }}
     - ${{ inputs.verbose }}
   env:
-    MYSQL_DATABASE_URL: ${{ inputs.mysql_database_url }}
-    OBSERVATORY_API_URL: ${{ inputs.observatory_api_url }}
-    OBSERVATORY_ANALYZE_URL: ${{ inputs.observatory_analyze_url }}
-    SLACK_API_TOKEN: ${{ inputs.slack_api_token }}
-    SLACK_CHANNEL_ID: ${{ inputs.slack_channel_id }}
+    HEART_MYSQL_DATABASE_URL: ${{ inputs.mysql_database_url }}
+    HEART_OBSERVATORY_API_URL: ${{ inputs.observatory_api_url }}
+    HEART_OBSERVATORY_ANALYZE_URL: ${{ inputs.observatory_analyze_url }}
+    HEART_SLACK_API_TOKEN: ${{ inputs.slack_api_token }}
+    HEART_SLACK_CHANNEL_ID: ${{ inputs.slack_channel_id }}