diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 139507a..3ea95c4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
           components: rustfmt, clippy
       
       - name: Cache Rust dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -54,7 +54,7 @@ jobs:
           toolchain: "1.91"
       
       - name: Cache Rust dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -90,7 +90,7 @@ jobs:
           toolchain: 1.91.1
       
       - name: Cache Rust dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry
@@ -146,7 +146,7 @@ jobs:
           echo "CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=aarch64-linux-gnu-gcc" >> $GITHUB_ENV
       
       - name: Cache Rust dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v6
         with:
           path: |
             ~/.cargo/registry