diff --git a/.github/workflows/build-ilspy.yml b/.github/workflows/build-ilspy.yml
index 03bc37cc4..8ce3864f3 100644
--- a/.github/workflows/build-ilspy.yml
+++ b/.github/workflows/build-ilspy.yml
@@ -44,7 +44,10 @@ jobs:
       uses: microsoft/setup-msbuild@v2
 
     - name: Install dotnet-format
-      run: dotnet tool install -g dotnet-format --version "9.0.520307" --add-source https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet9/nuget/v3/index.json
+      env:
+        DOTNET_FORMAT_VERSION: 10.0.100-preview.6.25358.103
+        DOTNET_FORMAT_SOURCE: https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet10-transport/nuget/v3/index.json
+      run: dotnet tool install -g dotnet-format --version "${{env.DOTNET_FORMAT_VERSION}}" --add-source "${{env.DOTNET_FORMAT_SOURCE}}"
 
     - name: Install wix (locked version)
       run: dotnet tool install --global wix --version 6.0.0
diff --git a/BuildTools/pre-commit b/BuildTools/pre-commit
index 8d455651a..dcaa14e0d 100644
--- a/BuildTools/pre-commit
+++ b/BuildTools/pre-commit
@@ -5,11 +5,12 @@
 
 set -eu
 
-DOTNET_FORMAT_VERSION=9.0.520307
+DOTNET_FORMAT_VERSION=10.0.100-preview.6.25358.103
+DOTNET_FORMAT_SOURCE="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet10-transport/nuget/v3/index.json"
 DOTNET_PATH="$LOCALAPPDATA/ICSharpCode/ILSpy/dotnet-format-$DOTNET_FORMAT_VERSION"
 if [ ! -d "$DOTNET_PATH" ]; then
  echo "Downloading dotnet-format $DOTNET_FORMAT_VERSION..."
- dotnet tool install --tool-path "$DOTNET_PATH" dotnet-format --version "$DOTNET_FORMAT_VERSION" --add-source "https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet9/nuget/v3/index.json"
+ dotnet tool install --tool-path "$DOTNET_PATH" dotnet-format --version "$DOTNET_FORMAT_VERSION" --add-source "$DOTNET_FORMAT_SOURCE"
 fi
 
 "$DOTNET_PATH/dotnet-format.exe" --version