diff --git a/.github/workflows/ci-arm.yml b/.github/workflows/ci-arm.yml
index c451f0f..8f46757 100644
--- a/.github/workflows/ci-arm.yml
+++ b/.github/workflows/ci-arm.yml
@@ -2,7 +2,7 @@ name: ARM64 Tests
 
 on:
   push:
-    branches: master
+    branches: [master]
   pull_request:
 
 jobs:
@@ -10,13 +10,12 @@ jobs:
     runs-on: [self-hosted, linux, ARM64]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Setup .NET
       uses: actions/setup-dotnet@v1
       with:
         dotnet-version: |
-          3.1.x
           6.0.x
 
     - name: Create virtualenv
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ae40be9..b83433d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,22 +2,22 @@ name: Python Tests
 
 on:
   push:
-    branches: master
+    branches: [master]
   pull_request:
 
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - uses: actions/setup-dotnet@v1
-    - uses: astral-sh/setup-uv@v4
+    - uses: astral-sh/setup-uv@v6
     - name: Build
       run: uv build
     - name: Upload source distribution
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: build-output
         path: "dist/*"
@@ -26,10 +26,10 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depths: 0
-    - uses: astral-sh/setup-uv@v4
+    - uses: astral-sh/setup-uv@v6
     - name: Install Ruff
       run: uv tool install ruff
     - name: Check format
@@ -46,7 +46,7 @@ jobs:
         python: ['3.13', '3.12', '3.11', '3.10', '3.9', '3.8'] # pypy3
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Setup .NET
       uses: actions/setup-dotnet@v1
@@ -54,13 +54,13 @@ jobs:
         dotnet-version: '6.0.x'
 
     - name: Set up Python ${{ matrix.python }}
-      uses: astral-sh/setup-uv@v4
+      uses: astral-sh/setup-uv@v6
       with:
         python-version: ${{ matrix.python }}
 
     - name: Cache Mono
       if: runner.os == 'Windows'
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ${{ env.TEMP }}\chocolatey
         key: ${{ runner.os }}-chocolatey-${{ matrix.python == 'pypy3' && '32' || '64' }}
@@ -76,7 +76,7 @@ jobs:
         uv pip install pytest
 
     - name: Download wheel
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: build-output
         path: dist/
@@ -96,7 +96,7 @@ jobs:
 
     steps:
     - name: Download artifacts
-      uses: actions/download-artifact@v3
+      uses: actions/download-artifact@v4
       with:
         name: build-output
         path: dist/
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index bce19d4..1fe8fee 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -14,7 +14,7 @@ jobs:
 
     - name: Upload artifact
       # Automatically uploads an artifact from the './_site' directory by default
-      uses: actions/upload-pages-artifact@v1
+      uses: actions/upload-pages-artifact@v3
       with:
         path: doc/_build/html/
 
diff --git a/clr_loader/types.py b/clr_loader/types.py
index 15c1e30..6b54030 100644
--- a/clr_loader/types.py
+++ b/clr_loader/types.py
@@ -141,6 +141,6 @@ def _truncate(string: str, length: int) -> str:
     if length <= 1:
         raise TypeError("length must be > 1")
     if len(string) > length - 1:
-        return f"{string[:length-1]}…"
+        return f"{string[: length - 1]}…"
     else:
         return string