diff --git a/.github/workflows/benchmarks.yml b/.github/workflows/benchmarks.yml
index 3543694..2bf1fc1 100644
--- a/.github/workflows/benchmarks.yml
+++ b/.github/workflows/benchmarks.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Start RabbitMQ server
         run: ./start_rabbitmq.sh
@@ -33,7 +33,7 @@ jobs:
   #   runs-on: macos-11
 
   #   steps:
-  #     - uses: actions/checkout@v3
+  #     - uses: actions/checkout@v4
   #     - uses: docker-practice/actions-setup-docker@master
 
   #     - name: Start RabbitMQ server
diff --git a/.github/workflows/regression_test.yml b/.github/workflows/regression_test.yml
index fa12cb3..ab0d12d 100644
--- a/.github/workflows/regression_test.yml
+++ b/.github/workflows/regression_test.yml
@@ -31,7 +31,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
+
+      - name: Check rust version
+        run: rustc -V; cargo -V; rustup -V
 
       - name: cargo build (debug, all-features)
         run: cargo build --all-features --verbose
@@ -48,7 +51,7 @@ jobs:
           - stable
           - 1.56
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
@@ -63,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Start RabbitMQ server
         run: ./start_rabbitmq.sh
@@ -87,7 +90,7 @@ jobs:
       - name: Check rust version
         run: rustc -V; cargo -V; rustup -V
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Start RabbitMQ server
         run: ./start_rabbitmq.sh
 
diff --git a/.github/workflows/test_coverage.yml b/.github/workflows/test_coverage.yml
index 0d5de6e..8ed1199 100644
--- a/.github/workflows/test_coverage.yml
+++ b/.github/workflows/test_coverage.yml
@@ -30,7 +30,7 @@ jobs:
   # codecov:
   #   runs-on: ubuntu-latest
   #   steps:
-  #   - uses: actions/checkout@v3
+  #   - uses: actions/checkout@v4
   #   - name: Start RabbitMQ server
   #     run: ./start_rabbitmq.sh
   #   - name: Cargo test instrumented
@@ -46,7 +46,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Start RabbitMQ server
         run: ./start_rabbitmq.sh
       - name: Install rust toolchain