diff --git a/.circleci/config.yml b/.circleci/config.yml
index 5b3f5a08a..ce2922ba3 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -98,7 +98,7 @@ jobs:
           command: yes | sdkmanager --licenses && yes | sdkmanager --update
       - run:
           name: Setup emulator
-          command: sdkmanager "system-images;android-19;default;armeabi-v7a" && echo "no" | avdmanager create avd -n test -k "system-images;android-19;default;armeabi-v7a"
+          command: sdkmanager "system-images;android-22;default;armeabi-v7a" && echo "no" | avdmanager create avd -n test -k "system-images;android-22;default;armeabi-v7a"
       - run:
           name: Launch emulator
           command: export LD_LIBRARY_PATH=${ANDROID_HOME}/emulator/lib64:${ANDROID_HOME}/emulator/lib64/qt/lib && emulator64-arm -avd test -noaudio -no-boot-anim -no-window -accel on
diff --git a/.travis.yml b/.travis.yml
index 7a8fac277..0a95ca451 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -34,12 +34,12 @@ android:
     - extra-android-m2repository
     - addon-google_apis-google-$ANDROID_API_LEVEL
     # Android emulator
-    - android-19
-    - sys-img-armeabi-v7a-android-19
+    - android-22
+    - sys-img-armeabi-v7a-android-22
 
 before_script:
     # Launch emulator before the execution
-    - echo no | android create avd --force -n test -t android-19 --abi armeabi-v7a
+    - echo no | android create avd --force -n test -t android-22 --abi armeabi-v7a
     - emulator -avd test -no-audio -no-window &
     - android-wait-for-emulator
     - adb shell input keyevent 82 &
diff --git a/app/build.gradle b/app/build.gradle
index 25a1cecf5..f49090242 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -63,7 +63,6 @@ android {
             versionNameSuffix "-dev"
             testCoverageEnabled = true
             ext.enableCrashlytics = project.hasProperty("enableCrashlytics")
-            multiDexKeepProguard file('proguard-multidex-rules.pro')
         }
     }
 
diff --git a/app/proguard-multidex-rules.pro b/app/proguard-multidex-rules.pro
deleted file mode 100644
index 9ee1737f4..000000000
--- a/app/proguard-multidex-rules.pro
+++ /dev/null
@@ -1,3 +0,0 @@
--keep class android.support.test.internal** { *; }
--keep class org.junit.** { *; }
--keep public class io.github.wulkanowy** { *; }