diff --git a/jupyter_vscode_proxy/__init__.py b/jupyter_vscode_proxy/__init__.py
index eaed7be..686f443 100644
--- a/jupyter_vscode_proxy/__init__.py
+++ b/jupyter_vscode_proxy/__init__.py
@@ -4,31 +4,41 @@
 
 def setup_vscode():
     def _get_vscode_cmd(port):
-        executable = 'code-server'
+        executable = "code-server"
         if not shutil.which(executable):
-            raise FileNotFoundError('Can not find code-server in PATH')
+            raise FileNotFoundError("Can not find code-server in PATH")
 
         working_dir = os.getenv("CODE_WORKINGDIR", None)
         if working_dir is None:
             working_dir = os.getenv("REPO_DIR", ".")
 
+        extensions_dir = os.getenv("CODE_EXTENSIONSDIR", None)
+        extra_extensions_dir = os.getenv("CODE_EXTRA_EXTENSIONSDIR", None)
+
         cmd = [
             executable,
-            '--no-auth',
-            '--disable-telemetry',
-            '--allow-http',
-            '--port=' + str(port),
-            working_dir
+            "--auth",
+            "none",
+            "--disable-telemetry",
+            "--port=" + str(port),
         ]
+
+        if extensions_dir:
+            cmd += ["--extensions-dir", extensions_dir]
+
+        if extra_extensions_dir:
+            cmd += ["--extra-extensions-dir", extra_extensions_dir]
+
+        cmd.append(working_dir)
         return cmd
 
     return {
-        'command': _get_vscode_cmd,
-        'timeout': 20,
-        'launcher_entry': {
-            'title': 'VS Code',
-            'icon_path': os.path.join(os.path.dirname(os.path.abspath(__file__)),
-                                      'icons',
-                                      'vscode.svg')
-        }
+        "command": _get_vscode_cmd,
+        "timeout": 20,
+        "launcher_entry": {
+            "title": "VS Code",
+            "icon_path": os.path.join(
+                os.path.dirname(os.path.abspath(__file__)), "icons", "vscode.svg"
+            ),
+        },
     }
diff --git a/postBuild b/postBuild
index c655544..9602dd1 100644
--- a/postBuild
+++ b/postBuild
@@ -1,12 +1,14 @@
 #!/bin/bash
 
+CODE_SERVER_VERSION="2.1692-vsc1.39.2"
+
 # Enable the proxy extension in notebook and lab
 jupyter serverextension enable --py jupyter_server_proxy
 jupyter labextension install jupyterlab-server-proxy
 jupyter lab build
 
 # Download and install VS Code server
-wget -q -O code-server.tar.gz https://github.com/cdr/code-server/releases/download/2.1523-vsc1.38.1/code-server2.1523-vsc1.38.1-linux-x86_64.tar.gz
+wget -q -O code-server.tar.gz https://github.com/cdr/code-server/releases/download/${CODE_SERVER_VERSION}/code-server${CODE_SERVER_VERSION}-linux-x86_64.tar.gz
 mkdir -p ~/.local/bin
 tar -xvf code-server.tar.gz -C ~/.local/bin --strip-components=1
 rm -rf code-server.tar.gz
diff --git a/setup.py b/setup.py
index 727242e..ba324b2 100644
--- a/setup.py
+++ b/setup.py
@@ -2,22 +2,18 @@
 
 setuptools.setup(
     name="jupyter-vscode-proxy",
-    version='0.1',
+    version="0.1",
     url="https://github.com/betatim/vscode-binder",
     author="Tim Head",
     description="Jupyter extension to proxy VS Code",
     packages=setuptools.find_packages(),
-	  keywords=['Jupyter'],
-  	classifiers=['Framework :: Jupyter'],
+    keywords=["Jupyter"],
+    classifiers=["Framework :: Jupyter"],
     install_requires=[
         #'jupyter-server-proxy'
     ],
     entry_points={
-        'jupyter_serverproxy_servers': [
-            'vscode = jupyter_vscode_proxy:setup_vscode',
-        ]
-    },
-    package_data={
-        'jupyter_vscode_proxy': ['icons/*'],
+        "jupyter_serverproxy_servers": ["vscode = jupyter_vscode_proxy:setup_vscode",]
     },
+    package_data={"jupyter_vscode_proxy": ["icons/*"],},
 )