diff --git a/.github/workflows/CI.yaml b/.github/workflows/CI.yaml
index 0987b208..94c2249b 100644
--- a/.github/workflows/CI.yaml
+++ b/.github/workflows/CI.yaml
@@ -14,7 +14,7 @@ jobs:
         python-version: [3.8, 3.11, pypy-3.7]
         include:
           - os: ubuntu-20.04
-            python-version: [3.6]
+            python-version: 3.6
     steps:
       - uses: actions/checkout@v2
       - name: Setup Python environment