diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1648b34..9c05e1d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -7,9 +7,12 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
+        nim: [stable, 1.2.6]
         os: [ubuntu-latest, macOS-latest, windows-latest]
     steps:
     - uses: actions/checkout@v2
     - uses: iffy/install-nim@v3
+      with:
+        version: ${{ matrix.nim }}
     - name: Test
       run: nimble test -y