diff --git a/org.fox.ttrss/build.gradle b/org.fox.ttrss/build.gradle
index d5c23ef9..c0f22116 100644
--- a/org.fox.ttrss/build.gradle
+++ b/org.fox.ttrss/build.gradle
@@ -1,7 +1,7 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 19
+    compileSdkVersion 21
     buildToolsVersion "20.0.0"
 
     defaultConfig {
@@ -27,6 +27,7 @@ dependencies {
     compile 'com.jeremyfeinstein.slidingmenu:library:1.3@aar'
     compile 'com.readystatesoftware.systembartint:systembartint:1.0.3'
     compile 'com.viewpagerindicator:library:2.4.1'
+    compile 'com.android.support:cardview-v7:21.0.+'
     compile 'com.android.support:support-v4:19.1.0'
     compile 'com.google.code.gson:gson:1.7.1'
     compile 'com.android.support:appcompat-v7:19.1.0'
diff --git a/org.fox.ttrss/org.fox.ttrss.iml b/org.fox.ttrss/org.fox.ttrss.iml
index ea2bf186..2b67f407 100644
--- a/org.fox.ttrss/org.fox.ttrss.iml
+++ b/org.fox.ttrss/org.fox.ttrss.iml
@@ -78,8 +78,9 @@
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/symbols" />
       <excludeFolder url="file://$MODULE_DIR$/build/outputs" />
     </content>
-    <orderEntry type="jdk" jdkName="Android API 19 Platform" jdkType="Android SDK" />
+    <orderEntry type="jdk" jdkName="Android API 21 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" exported="" name="cardview-v7-21.0.0" level="project" />
     <orderEntry type="library" exported="" name="dashclock-api-r1.1" level="project" />
     <orderEntry type="library" exported="" name="systembartint-1.0.3" level="project" />
     <orderEntry type="library" exported="" name="appcompat-v7-19.1.0" level="project" />