diff --git a/.github/workflows/run_observatory_tests.yml b/.github/workflows/run_observatory_tests.yml
index d294a2ebec..b6f6e9f19d 100644
--- a/.github/workflows/run_observatory_tests.yml
+++ b/.github/workflows/run_observatory_tests.yml
@@ -66,7 +66,7 @@ jobs:
       - name: Start cloudflared tunnel
         run: |
           # Install cloudflared
-          curl -sL https://github.com/cloudflare/cloudflared/releases/latest/download/cloudflared-linux-amd64 -o /usr/local/bin/cloudflared
+          curl -sL https://github.com/cloudflare/cloudflared/releases/download/2025.2.1/cloudflared-linux-amd64 -o /usr/local/bin/cloudflared
           chmod +x /usr/local/bin/cloudflared
 
           # Start a quick tunnel (no account needed) and capture the URL