diff --git a/.github/workflows/pr-checks.yml b/.github/workflows/pr-checks.yml
index 5ec9ba6ba6..ce97ebb5a9 100644
--- a/.github/workflows/pr-checks.yml
+++ b/.github/workflows/pr-checks.yml
@@ -171,7 +171,7 @@ jobs:
       - name: Build code
         run: |
           . ./codeql-runner/codeql-env.sh
-          $CODEQL_RUNNER dotnet build
+          $CODEQL_RUNNER dotnet build /p:UseSharedCompilation=false
 
       - name: Run analyze
         run: |
@@ -211,7 +211,13 @@ jobs:
         run: |
           cat ./codeql-runner/codeql-env.sh | Invoke-Expression
           $Env:CODEQL_EXTRACTOR_CSHARP_ROOT = ""
-          & $Env:CODEQL_RUNNER dotnet build
+          & $Env:CODEQL_RUNNER dotnet build /p:UseSharedCompilation=false
+
+      - name: Upload tracer logs
+        uses: actions/upload-artifact@v2
+        with:
+          name: tracer-logs
+          path: ./codeql-runner/compound-build-tracer.log
 
       - name: Run analyze
         run: |
@@ -249,7 +255,7 @@ jobs:
         shell: bash
         run: |
           . ./codeql-runner/codeql-env.sh
-          $CODEQL_RUNNER dotnet build
+          $CODEQL_RUNNER dotnet build /p:UseSharedCompilation=false
 
       - name: Run analyze
         run: |
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e6d051fa7..9a046004f6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ## [UNRELEASED]
 
-No user facing changes.
+- Update default CodeQL bundle version to 2.6.2. [#746](https://github.com/github/codeql-action/pull/746)
 
 ## 1.0.14 - 09 Sep 2021
 
diff --git a/lib/defaults.json b/lib/defaults.json
index a27e0321b9..bfc2ccfb73 100644
--- a/lib/defaults.json
+++ b/lib/defaults.json
@@ -1,3 +1,3 @@
 {
-    "bundleVersion": "codeql-bundle-20210909"
+    "bundleVersion": "codeql-bundle-20210921"
 }
diff --git a/src/defaults.json b/src/defaults.json
index 3af5520c9f..a1e0205fb8 100644
--- a/src/defaults.json
+++ b/src/defaults.json
@@ -1,3 +1,3 @@
 {
-  "bundleVersion": "codeql-bundle-20210909"
+  "bundleVersion": "codeql-bundle-20210921"
 }
diff --git a/tests/multi-language-repo/build.sh b/tests/multi-language-repo/build.sh
index 363499ab7e..677a0f9c97 100755
--- a/tests/multi-language-repo/build.sh
+++ b/tests/multi-language-repo/build.sh
@@ -2,7 +2,7 @@
 
 gcc -o main main.c
 
-dotnet build
+dotnet build -p:UseSharedCompilation=false
 
 javac Main.java