diff --git a/.github/workflows/compat.yml b/.github/workflows/compat.yml
index b626372f..2caa2fb3 100644
--- a/.github/workflows/compat.yml
+++ b/.github/workflows/compat.yml
@@ -26,7 +26,7 @@ jobs:
 
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@main
       - name: Use OCaml ${{ matrix.ocaml-compiler }}
         uses: ocaml/setup-ocaml@v2
         with:
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c3c77594..c138bd86 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -24,7 +24,7 @@ jobs:
 
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@main
       - name: Use OCaml ${{ matrix.ocaml-compiler }}
         uses: ocaml/setup-ocaml@v2
         with: