diff --git a/app/build.gradle b/app/build.gradle
index aaf4c35..070918d 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,7 +7,7 @@ android {
     defaultConfig {
         minSdkVersion 14
         targetSdkVersion 23
-        versionName "4.2.1a"
+        versionName "4.2.2a"
     }
     sourceSets {
         lightningPlus.setRoot('src/LightningPlus')
@@ -30,12 +30,12 @@ android {
         lightningPlus {
             buildConfigField "boolean", "FULL_VERSION", "true"
             applicationId "acr.browser.lightning"
-            versionCode 82
+            versionCode 83
         }
         lightningLite {
             buildConfigField "boolean", "FULL_VERSION", "false"
             applicationId "acr.browser.barebones"
-            versionCode 83
+            versionCode 84
         }
     }
     lintOptions {
diff --git a/app/proguard-project.txt b/app/proguard-project.txt
index edc15dc..40cddda 100644
--- a/app/proguard-project.txt
+++ b/app/proguard-project.txt
@@ -50,6 +50,18 @@
     public static *** i(...);
 }
 
+-keep class butterknife.** { *; }
+-dontwarn butterknife.internal.**
+-keep class **$$ViewBinder { *; }
+
+-keepclasseswithmembernames class * {
+    @butterknife.* <fields>;
+}
+
+-keepclasseswithmembernames class * {
+    @butterknife.* <methods>;
+}
+
 # this will fix a force close in ReadingActivity
 -keep public class org.jsoup.** {
     public *;