diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 74cdb8c341..f66efe03b4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -37,6 +37,7 @@ jobs:
           rustup override set stable
           rustup show
           rustup install 1.66
+          rustup default 1.66
           rustup show
           cargo install sqlx-cli --features openssl-vendored
           cargo install diesel_cli