diff --git a/.github/actions/initialize-linux-env/action.yml b/.github/actions/initialize-linux-env/action.yml
index ef0dbb500..67851bdb8 100644
--- a/.github/actions/initialize-linux-env/action.yml
+++ b/.github/actions/initialize-linux-env/action.yml
@@ -13,9 +13,12 @@ runs:
     - name: Setup OpenGL
       shell: bash
       run: sudo apt-get install libxi-dev libgl1-mesa-dev libglu1-mesa-dev mesa-common-dev libxrandr-dev libxxf86vm-dev
+    - name: Run git fetch on vcpkg
+      shell: bash
+      run: cd "$VCPKG_INSTALLATION_ROOT" && git checkout . && git fetch && git pull && ./bootstrap-vcpkg.sh
     - name: Cache Vcpkg
       id: cache-vcpkg
       uses: actions/cache@v3
       with:
         path: ~/.cache/vcpkg/archives
-        key: ${{ runner.os }}-vcpkg-cache
\ No newline at end of file
+        key: ${{ runner.os }}-vcpkg-cache
diff --git a/.github/actions/initialize-windows-env/action.yml b/.github/actions/initialize-windows-env/action.yml
index 8f472fd00..8e29f97da 100644
--- a/.github/actions/initialize-windows-env/action.yml
+++ b/.github/actions/initialize-windows-env/action.yml
@@ -7,6 +7,14 @@ runs:
       uses: ashutoshvarma/setup-ninja@v1.1
       with:
         version: 1.10.0
+    - name: Update vcpkg
+      shell: pwsh
+      run: |
+        Push-Location "$env:VCPKG_INSTALLATION_ROOT"
+        git fetch
+        git pull
+        ./bootstrap-vcpkg.bat
+        Pop-Location
     - name: Cache Vcpkg
       id: cache-vcpkg
       uses: actions/cache@v3
diff --git a/include/lspserv.h b/include/lspserv.h
index 286c75b6c..d4b22dbda 100644
--- a/include/lspserv.h
+++ b/include/lspserv.h
@@ -175,6 +175,8 @@ namespace AsymptoteLsp
     unique_ptr<SymContextFilemap> symmapContextsPtr;
     unique_ptr<unordered_map<std::string, std::vector<std::string>>> fileContentsPtr;
     std::string plainFile;
+
+    std::mutex onChangeMutex;
   };
 
   class TCPAsymptoteLSPServer : public lsp::TcpServer, public AsymptoteLspServer
diff --git a/src/lspserv.cc b/src/lspserv.cc
index 328cf9e47..df3aa11ac 100644
--- a/src/lspserv.cc
+++ b/src/lspserv.cc
@@ -317,6 +317,7 @@ std::string wslUnix2Dos(std::string const& unixPath)
 
   void AsymptoteLspServer::onChange(Notify_TextDocumentDidChange::notify& notify)
   {
+    std::lock_guard lk(onChangeMutex);
     logInfo("text change notification");
 
     auto& fileChange = notify.params.contentChanges;
diff --git a/vcpkg.json b/vcpkg.json
index b91b2cb61..80d1f6374 100644
--- a/vcpkg.json
+++ b/vcpkg.json
@@ -3,6 +3,7 @@
 
   "name": "asymptote",
   "version": "0.0-snapshot",
+  "builtin-baseline": "ad3bae57455a3c3ce528fcd47d8e8027d0498add",
   "dependencies": [
     "zlib",
     "glm",