diff --git a/src/index.js b/src/index.js
index abd0123..415c4eb 100644
--- a/src/index.js
+++ b/src/index.js
@@ -2,10 +2,14 @@ const SentryCli = require('@sentry/cli');
 const path = require('path');
 const util = require('util');
 const { RawSource } = require('webpack-sources');
+const pjson = require('../package.json');
 
 const SENTRY_LOADER = path.resolve(__dirname, 'sentry.loader.js');
 const SENTRY_MODULE = path.resolve(__dirname, 'sentry-webpack.module.js');
 
+// Set the User-Agent string.
+process.env.SENTRY_PIPELINE = `webpack-plugin/${pjson.version}`;
+
 /**
  * Helper function that ensures an object key is defined. This mutates target!
  *