diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2d36f63..8df0f65 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,9 +9,12 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macOS-latest, windows-latest]
+        nim: [1.2.6, stable]
     steps:
     - uses: actions/checkout@v2
     - uses: iffy/install-nim@v3
+      with:
+        version: ${{ matrix.nim }}
     - name: Build
       run: nimble install -y
     - name: Test