diff --git a/.github/env_nightly_upgrade b/.github/env_nightly_upgrade
index 7858f85c5..8599b02d8 100644
--- a/.github/env_nightly_upgrade
+++ b/.github/env_nightly_upgrade
@@ -1,2 +1,2 @@
-BASE_TAR_URL=https://github.com/IntersectMBO/cardano-node/releases/download/8.12.2/cardano-node-8.12.2-linux.tar.gz
+BASE_TAR_URL=https://github.com/IntersectMBO/cardano-node/releases/download/9.1.0/cardano-node-9.1.0-linux.tar.gz
 CI_BYRON_CLUSTER=true