diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c45b907..e9f12d6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     timeout-minutes: 30
     strategy:
       matrix:
-        nim: [1.6.20, 2.0.12, stable]
+        nim: [2.0.12, stable]
     steps:
     - name: Checkout
       uses: actions/checkout@v4