diff --git a/.idea/libraries/jps.xml b/.idea/libraries/jps.xml
index d4b7d204128..c7ca7a26484 100644
--- a/.idea/libraries/jps.xml
+++ b/.idea/libraries/jps.xml
@@ -15,6 +15,7 @@
       <root url="jar://$PROJECT_DIR$/ideaSDK/sources/sources.zip!/jps/jps-builders/testSrc" />
       <root url="jar://$PROJECT_DIR$/ideaSDK/sources/sources.zip!/jps/standalone-builder/src" />
       <root url="jar://$PROJECT_DIR$/ideaSDK/sources/sources.zip!/platform/util/src" />
+      <root url="jar://$PROJECT_DIR$/dependencies/protobuf-java-2.5.0-sources.jar!/" />
     </SOURCES>
     <jarDirectory url="file://$PROJECT_DIR$/ideaSDK/jps" recursive="false" />
   </library>
diff --git a/.idea/libraries/protobuf_java.xml b/.idea/libraries/protobuf_java.xml
new file mode 100644
index 00000000000..9f6dedd5923
--- /dev/null
+++ b/.idea/libraries/protobuf_java.xml
@@ -0,0 +1,11 @@
+<component name="libraryTable">
+  <library name="protobuf-java">
+    <CLASSES>
+      <root url="jar://$PROJECT_DIR$/ideaSDK/lib/protobuf-2.5.0.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="jar://$PROJECT_DIR$/dependencies/protobuf-java-2.5.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file
diff --git a/update_dependencies.xml b/update_dependencies.xml
index 30e608292a4..8ef73e09d7b 100644
--- a/update_dependencies.xml
+++ b/update_dependencies.xml
@@ -129,6 +129,9 @@
 
         <!-- ASM 4 -->
         <get-asm4-and-rename-packages/>
+
+        <!-- Protocol Buffers -->
+        <get-maven-library prefix="com/google/protobuf" lib="protobuf-java" version="2.5.0" bin="false"/>
     </target>
 
     <macrodef name="get-asm4-and-rename-packages">