--- a/toolkit/components/normandy/lib/ClientEnvironment.jsm
+++ b/toolkit/components/normandy/lib/ClientEnvironment.jsm
@@ -15,16 +15,17 @@ ChromeUtils.defineModuleGetter(this, "Up
 ChromeUtils.defineModuleGetter(this, "NormandyApi", "resource://normandy/lib/NormandyApi.jsm");
 ChromeUtils.defineModuleGetter(
     this,
     "PreferenceExperiments",
     "resource://normandy/lib/PreferenceExperiments.jsm"
 );
 ChromeUtils.defineModuleGetter(this, "Utils", "resource://normandy/lib/Utils.jsm");
 ChromeUtils.defineModuleGetter(this, "Addons", "resource://normandy/lib/Addons.jsm");
+ChromeUtils.defineModuleGetter(this, "AppConstants", "resource://gre/modules/AppConstants.jsm");
 
 const {generateUUID} = Cc["@mozilla.org/uuid-generator;1"].getService(Ci.nsIUUIDGenerator);
 
 var EXPORTED_SYMBOLS = ["ClientEnvironment"];
 
 // Cached API request for client attributes that are determined by the Normandy
 // service.
 let _classifyRequest = null;
@@ -119,17 +120,17 @@ var ClientEnvironment = {
       for (const key in mostRecentPings) {
         const ping = mostRecentPings[key];
         telemetry[ping.type] = await TelemetryArchive.promiseArchivedPingById(ping.id);
       }
       return telemetry;
     });
 
     XPCOMUtils.defineLazyGetter(environment, "version", () => {
-      return Services.appinfo.version;
+      return AppConstants.MOZ_APP_VERSION_DISPLAY;
     });
 
     XPCOMUtils.defineLazyGetter(environment, "channel", () => {
       return UpdateUtils.getUpdateChannel(false);
     });
 
     XPCOMUtils.defineLazyGetter(environment, "isDefaultBrowser", () => {
       return ShellService.isDefaultBrowser();