diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 89f04ed..2e263e2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,8 +10,8 @@ jobs:
       matrix:
         toolchain: [1.74.0, stable, beta, nightly]
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/cache@v3
+      - uses: actions/checkout@v4
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.cargo/registry/index/
@@ -91,8 +91,8 @@ jobs:
     name: Run tests under Miri
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/cache@v3
+      - uses: actions/checkout@v4
+      - uses: actions/cache@v4
         with:
           path: |
             ~/.cargo/registry/index/