diff --git a/README.md b/README.md
index e86c0b3..5eeda84 100644
--- a/README.md
+++ b/README.md
@@ -11,10 +11,12 @@ or `npm run build`.
 
 # Configuration
 
-Copy the file `config/config.json.sample` to `config/config.json`. If you are accessing public GitHub, you don't need to change the `apiBaseUrl` option. If you are accessing a GitHub Enterprise instance, you will need to set `apiBaseUrl` to the base URL of your GitHub Enterprise installation, e.g. `https://github.mycompany.com/api/v3`.  To use the GitHub Personal Access Token for accessing private repositories, `username` and `password` lines in `config/config.json` can be replaced with a single `"token": "MY_PERSONAL_TOKEN"` line. 
+Copy the file `config/config.json.sample` to `config/config.json`. If you are accessing public GitHub, you don't need to change the `apiBaseUrl` option. If you are accessing a GitHub Enterprise instance, you will need to set `apiBaseUrl` to the base URL of your GitHub Enterprise installation, e.g. `https://github.mycompany.com/api/v3`.  To use the GitHub Personal Access Token for accessing private repositories, `username` and `password` lines in `config/config.json` can be replaced with a single `"token": "MY_PERSONAL_TOKEN"` line.
 
 GitHub places a very strict rate limit on unauthenticated requests. If you run into this problem, you will need to add your GitHub username and password in `config.json`.
 
+In order to allow this code to run behind corporate firewalls (in particular those which tunnel https connections over an http proxy) additional configuration is available in an optional 'sslTunnel' section in the `config.json` - See the config.json.sample for an example - Remove this section if you do not require it in your own config.
+
 # Running the server
 To run the PR dashbaord server, run `npm start`. This will start the server, listening on port 8080. You can change the port number by setting a `PORT` environment variable, e.g. `export PORT=80`.
 
diff --git a/config/config.json.sample b/config/config.json.sample
index 4778736..def5676 100644
--- a/config/config.json.sample
+++ b/config/config.json.sample
@@ -20,5 +20,9 @@
     "positive": 2,
     "negative": 0,
     "neverRegexp": "DO NOT MERGE"
+  },
+  "sslTunnel": {
+    "host": "proxy.mycorp.com",
+    "port": 8080
   }
 }
diff --git a/package.json b/package.json
index 630e7d4..659bf50 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,7 @@
     "webpack-dev-server": "^1.14.1"
   },
   "dependencies": {
-    "axios": "^0.13.1",
+    "axios": "^v0.19.0-beta.1",
     "bluebird": "^3.4.0",
     "body-parser": "^1.17.1",
     "emojione": "^2.2.6",
@@ -58,6 +58,7 @@
     "react-redux": "^4.4.5",
     "react-router-dom": "^4.0.0",
     "redux": "^3.5.2",
-    "redux-thunk": "^2.1.0"
+    "redux-thunk": "^2.1.0",
+    "tunnel": "0.0.6"
   }
 }
diff --git a/server/githubService.js b/server/githubService.js
index c3a7726..c84b27a 100644
--- a/server/githubService.js
+++ b/server/githubService.js
@@ -1,9 +1,12 @@
 const axios = require('axios');
+const tunnel = require('tunnel');
 
 const configManager = require('./configManager');
 const emoji = require('./emoji');
 const reviews = require('./reviews');
 
+
+
 function apiCall(url, headers = {}) {
   const config = configManager.getConfig();
   const options = { headers };
@@ -14,10 +17,19 @@ function apiCall(url, headers = {}) {
     }
   } else if (config.token ) {
     options.auth = {
-      username: config.token 
+      username: config.token
     }
   };
-  
+
+  if (config.sslTunnel) {
+     options.httpsAgent = tunnel.httpsOverHttp({
+       proxy: {
+         host: config.sslTunnel.host,
+         port: config.sslTunnel.port
+       },
+     });
+     options.proxy = false;
+  };
   return axios.get(url, options);
 }