diff --git a/.travis.yml b/.travis.yml
index 239637ba4..48a836ed1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,7 @@ android:
     - '.+'
 before_script:
     - mkdir libs
-    - wget -O libs/libwebrtc-m85.aar https://gultsch.de/files/libwebrtc-m85.aar
+    - wget -O libs/libwebrtc-m87.aar https://gultsch.de/files/libwebrtc-m87.aar
 script:
     - ./gradlew assembleConversationsFreeSystemRelease
     - ./gradlew assembleQuicksyFreeCompatRelease
diff --git a/build.gradle b/build.gradle
index f4de663a7..de1c4efed 100644
--- a/build.gradle
+++ b/build.gradle
@@ -80,7 +80,7 @@ dependencies {
     implementation 'com.squareup.okhttp3:okhttp:3.12.12'
     implementation 'com.google.guava:guava:27.1-android'
     quicksyImplementation 'io.michaelrocks:libphonenumber-android:8.11.1'
-    implementation fileTree(include: ['libwebrtc-m85.aar'], dir: 'libs')
+    implementation fileTree(include: ['libwebrtc-m87.aar'], dir: 'libs')
 }
 
 ext {
@@ -93,7 +93,7 @@ android {
     compileSdkVersion 29
 
     defaultConfig {
-        minSdkVersion 16
+        minSdkVersion 21
         targetSdkVersion 29
         versionCode 403
         versionName "2.9.3"