diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 45fcf419..4a3a4c85 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -27,7 +27,7 @@ jobs:
       uses: actions/checkout@v4.1.6
 
     - name: Set up OCaml
-      uses: ocaml/setup-ocaml@v2.2.9
+      uses: ocaml/setup-ocaml@v3.0.3
       with:
         ocaml-compiler: ${{ matrix.ocaml-compiler }}
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 5120c2cd..40e935c8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -37,7 +37,7 @@ jobs:
       run: brew install zmq
 
     - name: Set up OCaml
-      uses: ocaml/setup-ocaml@v2.2.9
+      uses: ocaml/setup-ocaml@v3.0.3
       with:
         ocaml-compiler: ${{ matrix.ocaml-compiler }}