diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b9f7075..bfdb60f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -40,7 +40,7 @@ jobs:
           mix local.hex --force
           mix local.rebar --force
           mix deps.get
-          MIX_ENV=TEST mix docs
+          MIX_ENV=test mix docs
 
       - name: Upload Docs
         id: docs