diff --git a/.github/workflows/zulip-ci.yml b/.github/workflows/zulip-ci.yml
index 67b6b6462..a80573c8a 100644
--- a/.github/workflows/zulip-ci.yml
+++ b/.github/workflows/zulip-ci.yml
@@ -50,12 +50,12 @@ jobs:
 
     steps:
       - name: "Check out python-zulip-api"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           path: api
 
       - name: "Check out Zulip server ${{ matrix.server_version }}"
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           repository: zulip/zulip
           ref: ${{ matrix.server_version }}
diff --git a/.github/workflows/zulip-tests.yml b/.github/workflows/zulip-tests.yml
index 7337af9d9..3ac833fc2 100644
--- a/.github/workflows/zulip-tests.yml
+++ b/.github/workflows/zulip-tests.yml
@@ -11,10 +11,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Set up Python 3.8
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: "3.8"
 
@@ -35,10 +35,10 @@ jobs:
         python-version: ["3.8", "3.9", "3.10", "3.11"]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -57,6 +57,7 @@ jobs:
           zulip-api-py3-venv\Scripts\Activate.ps1
           pytest --cov --cov-config=tools\.coveragerc --cov-report=xml
 
-      - uses: codecov/codecov-action@v2
+      - uses: codecov/codecov-action@v4
         with:
           files: coverage.xml
+          token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/requirements.txt b/requirements.txt
index 8f2511090..ceab016a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,12 +3,12 @@ twine
 mock
 pytest
 pytest-cov
-ruff~=0.1.4
+ruff~=0.2.2
 -e ./zulip
 -e ./zulip_bots
 -e ./zulip_botserver
-git+https://github.com/zulip/zulint@61fe2ec73e272396152d293fbf07926120e42f38#egg=zulint==1.0.0
-mypy==1.6.1
+git+https://github.com/zulip/zulint@417b4e4971fdd5ca8e84847f1391b657b188631a#egg=zulint==1.0.0
+mypy==1.8.0
 types-beautifulsoup4
 types-httplib2
 types-python-dateutil