diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e3c56cf..2b009d8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -40,7 +40,7 @@ jobs:
       with:
         ghc-version: ${{ matrix.ghc }}
         cabal-version: ${{ matrix.cabal }}
-	cabal-update: true
+        cabal-update: true
 
     - name: Configure
       run: |