diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index da04a4c0..34a2f79b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ">=3.11"
           cache: "pip"
@@ -26,7 +26,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ">=3.11"
           cache: "pip"
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 271b0192..bf069d7f 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ">=3.11"
           cache: "pip"
diff --git a/.github/workflows/refresh-bettertls-testcases.yml b/.github/workflows/refresh-bettertls-testcases.yml
index f6b307e7..c49e3023 100644
--- a/.github/workflows/refresh-bettertls-testcases.yml
+++ b/.github/workflows/refresh-bettertls-testcases.yml
@@ -19,7 +19,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ">=3.11"
           cache: "pip"
diff --git a/.github/workflows/refresh-online-testcases.yml b/.github/workflows/refresh-online-testcases.yml
index ca784273..cb36bdae 100644
--- a/.github/workflows/refresh-online-testcases.yml
+++ b/.github/workflows/refresh-online-testcases.yml
@@ -16,7 +16,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ">=3.11"
           cache: "pip"
diff --git a/.github/workflows/site.yml b/.github/workflows/site.yml
index deb37aa0..abb08c27 100644
--- a/.github/workflows/site.yml
+++ b/.github/workflows/site.yml
@@ -24,7 +24,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ">=3.11"
           cache: "pip"
diff --git a/.github/workflows/test-harness.yml b/.github/workflows/test-harness.yml
index b1201c30..070e988f 100644
--- a/.github/workflows/test-harness.yml
+++ b/.github/workflows/test-harness.yml
@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ">=3.12"
 
@@ -30,7 +30,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ">=3.12"
 
@@ -45,7 +45,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ">=3.12"
 
@@ -60,7 +60,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: ">=3.12"