diff --git a/.github/workflows/ci_bindings_ocaml.yml b/.github/workflows/ci_bindings_ocaml.yml
index abc8d20e3f16..a5a6ded4c4fb 100644
--- a/.github/workflows/ci_bindings_ocaml.yml
+++ b/.github/workflows/ci_bindings_ocaml.yml
@@ -42,7 +42,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Cache OPAM dependencies
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.opam
           key: ${{ runner.os }}-opam-${{ hashFiles('bindings/ocaml/dune-project') }}
@@ -51,7 +51,7 @@ jobs:
             ${{ runner.os }}-opam-doc-
 
       - name: Cache Dune build artifacts
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: bindings/ocaml/_build
           key: ${{ runner.os }}-dune-${{ hashFiles('bindings/ocaml/**/*.{ml,mli,opam}') }}
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 374345037284..2ca5beeabbf9 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -220,7 +220,7 @@ jobs:
           cabal update
 
       - name: Setup cache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         env:
           cache-name: cache-cabal
         with:
@@ -282,7 +282,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Cache OPAM dependencies
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.opam
           key: ${{ runner.os }}-opam-doc-${{ hashFiles('bindings/ocaml/dune-project') }}
@@ -291,7 +291,7 @@ jobs:
             ${{ runner.os }}-opam-
 
       - name: Cache Dune build artifacts
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: bindings/ocaml/_build
           key: ${{ runner.os }}-dune-doc-${{ hashFiles('bindings/ocaml/**/*.{ml,mli,opam}') }}