diff --git a/app/package.json b/app/package.json
index b4cc2ae..c7c22d2 100644
--- a/app/package.json
+++ b/app/package.json
@@ -41,7 +41,7 @@
     "@types/jasmine": "2.5.41",
     "@types/node": "7.0.4",
     "codecov": "2.2.0",
-    "ionic": "3.12.0",
+    "ionic": "3.19.1",
     "jasmine-core": "2.5.2",
     "jasmine-spec-reporter": "3.2.0",
     "karma": "1.4.1",
diff --git a/app/src/components/head-nav/head-nav.ts b/app/src/components/head-nav/head-nav.ts
index 664e77e..7e439ec 100644
--- a/app/src/components/head-nav/head-nav.ts
+++ b/app/src/components/head-nav/head-nav.ts
@@ -113,15 +113,15 @@ export class HeadNavComponent {
           }
         },
         {
-          text: 'BTC',
+          text: this.currency.defaultCurrency,
           handler: () => {
-            this.currency.setCurrency('BTC');
+            this.currency.setCurrency(this.currency.defaultCurrency);
           }
         },
         {
-          text: 'mBTC',
+          text: 'm' + this.currency.defaultCurrency,
           handler: () => {
-            this.currency.setCurrency('mBTC');
+            this.currency.setCurrency('m' + this.currency.defaultCurrency);
           }
         },
         {