diff --git a/.github/workflows/audit.yml b/.github/workflows/audit.yml
index b2ac57c..1ff6205 100644
--- a/.github/workflows/audit.yml
+++ b/.github/workflows/audit.yml
@@ -20,7 +20,7 @@ jobs:
         uses: actions/checkout@v5
           
       - name: Cache Cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 52747cf..95a7d6c 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -30,7 +30,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Cache Cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry
@@ -62,7 +62,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Cache Cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry
@@ -85,7 +85,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Cache Cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry
@@ -108,7 +108,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Cache Cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry
@@ -134,7 +134,7 @@ jobs:
         uses: actions/checkout@v5
 
       - name: Cache Cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: |
             ~/.cargo/registry