diff --git a/app/src/main/java/de/ccc/events/badge/card10/main/MainFragment.kt b/app/src/main/java/de/ccc/events/badge/card10/main/MainFragment.kt
index d73c424e4f787e0a9f73f6dfed0a0845ca443a58..59b9ab8309709b9f9a746af4b527ba3609a44924 100644
--- a/app/src/main/java/de/ccc/events/badge/card10/main/MainFragment.kt
+++ b/app/src/main/java/de/ccc/events/badge/card10/main/MainFragment.kt
@@ -213,7 +213,7 @@ class MainFragment : Fragment(), ConnectionStateListener, GattListener {
                         minor = minor_s.toInt()
                     }
 
-                    if (major < 1 || minor < 17) {
+                    if (major < 1 || minor < 18) {
                         val d: AlertDialog = AlertDialog.Builder(context)
                             .setPositiveButton(android.R.string.ok, null)
                             .setMessage(R.string.main_update_message)
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7de5d74f1ee347e16ebe1e273fb72c53bcaf5d9d..f71e09b0b51fcf2f3f5064dd1dab74a55aaef6d6 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -18,7 +18,7 @@
     <string name="main_button_set_time">Set Time</string>
     <string name="main_button_ecg">ECG</string>
 
-    <string name="main_update_message">The firmware on your card10 is outdated. Please update to version v1.17!\n
+    <string name="main_update_message">The firmware on your card10 is outdated. Please update to version v1.18!\n
         \n
         See our <a href="https://card10.badge.events.ccc.de/firmware/firmwareupdate/">firmware update guide</a> for details.
     </string>