diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 83bb95f..8aeca4c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,7 @@ jobs:
       matrix:
         nimversion:
         - 1.4.8
-        - git:6b97889f44d06f66
+        - 1.6.0
         os:
         - ubuntu-latest
         - macOS-latest
@@ -22,11 +22,11 @@ jobs:
     - uses: actions/checkout@v1
       with:
         submodules: true
-    - uses: iffy/install-nim@v3.2.0
+    - uses: iffy/install-nim@v4
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
-        nimversion: ${{ matrix.nimversion }}
+        version: ${{ matrix.nimversion }}
     - name: Test
       run: |
         nimble test