diff --git a/.deploy-infra/deploy-prod.yaml b/.deploy-infra/deploy-prod.yaml
index 506f99e..5695aef 100644
--- a/.deploy-infra/deploy-prod.yaml
+++ b/.deploy-infra/deploy-prod.yaml
@@ -36,7 +36,7 @@ services:
     environment:
       GF_SERVER_ROOT_URL: https://grafana.chocomarsh.com
       GF_SECURITY_ALLOW_EMBEDDING: true
-      GF_AUTH_COOKIE_SAMESITE: null
+      GF_AUTH_COOKIE_SAMESITE: "none"
       GF_CORS_ENABLED: true
       GF_CORS_ALLOW_ORIGINS: https://grafana.chocomarsh.com
     deploy: