diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cbb1eab..2e8cc1d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
     name: Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Install protoc
         run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
@@ -48,7 +48,7 @@ jobs:
     needs: check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Install protoc
         run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
@@ -72,7 +72,7 @@ jobs:
     needs: check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Install protoc
         run: sudo apt-get update && sudo apt-get install -y protobuf-compiler
diff --git a/.github/workflows/integration-test.yml b/.github/workflows/integration-test.yml
index f27b7a8..6867845 100644
--- a/.github/workflows/integration-test.yml
+++ b/.github/workflows/integration-test.yml
@@ -23,7 +23,7 @@ jobs:
     name: Testnet Validation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup Rust
         uses: dtolnay/rust-toolchain@nightly
diff --git a/.github/workflows/security.yml b/.github/workflows/security.yml
index 63f1060..384ebeb 100644
--- a/.github/workflows/security.yml
+++ b/.github/workflows/security.yml
@@ -20,7 +20,7 @@ jobs:
     name: Security Audit
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       
       - name: Install cargo-audit
         run: cargo install cargo-audit