diff --git a/.circleci/config.yml b/.circleci/config.yml
index fc56b6214e..12203abcd7 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -9,8 +9,9 @@ jobs:
         # that flag starts the download asynchronously so we'd have a race
         # condition.
         # renovate: datasource=github-releases depName=hashicorp/terraform versioning=hashicorp
-        TERRAFORM_VERSION: 1.8.2
-        CONFTEST_VERSION: 0.52.0
+        DEFAULT_TERRAFORM_VERSION: 1.8.2
+        DEFAULT_OPENTOFU_VERSION: 1.7.1
+        DEFAULT_CONFTEST_VERSION: 0.52.0
     steps:
     - checkout
     - run: make build-service