diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1160cfd..bf7ff3f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -89,7 +89,7 @@ jobs:
           sudo apt-get install -y mkcert libnss3-tools
           mkdir -p certs
           mkcert -install
-          mkcert localhost -cert-file certs/localhost.pem -key-file certs/localhost-key.pem [IP_ADDRESS]
+          mkcert localhost [IP_ADDRESS] ::1 -cert-file certs/localhost.pem -key-file certs/localhost-key.pem
 
       - name: Install uv
         uses: astral-sh/setup-uv@v5