diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bd9281b..5829ea2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -49,9 +49,9 @@ jobs:
         path: |
           ~/miniconda3
           build/*.txt
-        key: ${{ runner.OS }}-conda-cache-${{ hashFiles('requirements/*.txt', 'setup.py', 'makefile*') }}
+        key: ${{ runner.OS }}-conda-cache-${{ hashFiles('requirements/*.txt', 'setup.py', 'Makefile*') }}
         restore-keys: |
-          ${{ runner.OS }}-conda-cache-${{ hashFiles('requirements/*.txt', 'setup.py', 'makefile*') }}
+          ${{ runner.OS }}-conda-cache-${{ hashFiles('requirements/*.txt', 'setup.py', 'Makefile*') }}
 
     - name: brew install mercurial
       run: brew install mercurial