diff --git a/.travis.yml b/.travis.yml
index 5f77f8a..8a9589a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ android:
   components:
     - platform-tools
     - tools
-    - build-tools-25.0.2
+    - build-tools-27.0.3
     - android-25
     - extra-android-support
     - extra-android-m2repository
diff --git a/README.md b/README.md
index 2e19c43..df833ee 100644
--- a/README.md
+++ b/README.md
@@ -36,14 +36,14 @@ dependencies {
 
 Usage
 -----
-In your layout:
+###In your layout:
 ```xml
     <com.nishant.math.MathView
         android:id="@+id/math_view"
         android:layout_width="match_parent"
         android:layout_height="wrap_content">
 ```
-In Activity:
+###In Activity:
 ```java
   @BindView(R.id.math_view)
   MathView mathView;
@@ -56,6 +56,14 @@ In Activity:
   }
 ```
 
+
+###Proguard-rules:
+```
+
+-keepattributes EnclosingMethod
+-keep class com.nishant.** { *; }
+```
+
 License
 =======
 Copyright (C) 2016 - 2017 Nishant Pathak
diff --git a/app/build.gradle b/app/build.gradle
index 2d15b5d..f20f11e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,18 +6,18 @@ repositories {
 
 android {
   compileSdkVersion 27
-  buildToolsVersion "27.0.2"
+  buildToolsVersion '27.0.3'
   defaultConfig {
-    applicationId "com.nishant.mathsample"
+    applicationId 'com.nishant.mathsample'
     minSdkVersion 17
     targetSdkVersion 27
     versionCode 1
-    versionName "1.0"
-    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    versionName '1.0'
+    testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
   }
   buildTypes {
     release {
-      minifyEnabled false
+      minifyEnabled true
       proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
     }
   }
@@ -30,9 +30,9 @@ dependencies {
   androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
     exclude group: 'com.android.support', module: 'support-annotations'
   })
-  //  compile project(path: ':mathview-lib')
-  implementation 'com.github.Nishant-Pathak:MathView:v1.1'
-  //  compile 'com.github.Nishant-Pathak:App-Math:v0.6'
+
+  // compile project(path: ':mathview-lib')
+  implementation 'com.github.Nishant-Pathak:MathView:v1.2'
   implementation 'com.android.support:appcompat-v7:27.0.2'
   androidTestImplementation 'junit:junit:4.12'
     compile project(path: ':mathview-lib')
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 84412ee..edafb40 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -15,3 +15,8 @@
 #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
 #   public *;
 #}
+
+#------------- MathView Start -------------------
+-keepattributes EnclosingMethod
+-keep class com.nishant.** { *; }
+#------------- MathView End   -------------------
\ No newline at end of file
diff --git a/mathview-lib/build.gradle b/mathview-lib/build.gradle
index a7a94b6..722e35c 100644
--- a/mathview-lib/build.gradle
+++ b/mathview-lib/build.gradle
@@ -3,7 +3,7 @@ apply plugin: 'com.github.dcendents.android-maven'
 
 android {
   compileSdkVersion 27
-  buildToolsVersion '27.0.2'
+  buildToolsVersion '27.0.3'
 //  publishNonDefault true
 
   defaultConfig {
diff --git a/mathview-lib/proguard-rules.pro b/mathview-lib/proguard-rules.pro
index 7526e02..84412ee 100644
--- a/mathview-lib/proguard-rules.pro
+++ b/mathview-lib/proguard-rules.pro
@@ -15,6 +15,3 @@
 #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
 #   public *;
 #}
-
--keepattributes EnclosingMethod
--keep class com.nishant.** { *; }
\ No newline at end of file