diff --git a/.classpath b/.classpath
index f8e16246c..553d8bd52 100644
--- a/.classpath
+++ b/.classpath
@@ -23,7 +23,7 @@
 	<classpathentry kind="lib" path="lib/xercesImpl.jar"/>
 	<classpathentry kind="lib" path="lib/xml-apis.jar"/>
 	<classpathentry kind="lib" path="lib/geronimo-stax-api_1.0_spec-1.0.1.jar"/>
-	<classpathentry kind="lib" path="lib/commons-compress-1.8.jar"/>
+	<classpathentry kind="lib" path="lib/commons-compress-1.8.1.jar"/>
 	<classpathentry kind="lib" path="lib/commons-lang-2.6.jar"/>
 	<classpathentry kind="lib" path="lib/jaudiotagger-2.0.4-20111207.115108-15.jar"/>
 	<classpathentry kind="lib" path="lib/commons-codec-1.7.jar"/>
diff --git a/addon/YaCy.app/Contents/Info.plist b/addon/YaCy.app/Contents/Info.plist
index 731baba6f..bc7874a5f 100644
--- a/addon/YaCy.app/Contents/Info.plist
+++ b/addon/YaCy.app/Contents/Info.plist
@@ -41,7 +41,7 @@
 			<string>$JAVAROOT/lib/bcmail-jdk15-1.46.jar</string>
 			<string>$JAVAROOT/lib/bcprov-jdk15-1.46.jar</string>
 			<string>$JAVAROOT/lib/commons-codec-1.7.jar</string>
-			<string>$JAVAROOT/lib/commons-compress-1.8.jar</string>
+			<string>$JAVAROOT/lib/commons-compress-1.8.1.jar</string>
 			<string>$JAVAROOT/lib/commons-fileupload-1.2.2.jar</string>
 			<string>$JAVAROOT/lib/commons-io-2.3.jar</string>
 			<string>$JAVAROOT/lib/commons-jxpath-1.3.jar</string>
diff --git a/build.xml b/build.xml
index 63ca49fe3..23d884e3b 100644
--- a/build.xml
+++ b/build.xml
@@ -165,7 +165,7 @@
     	<pathelement location="${lib}/bcmail-jdk15-1.46.jar" />
     	<pathelement location="${lib}/bcprov-jdk15-1.46.jar" />
     	<pathelement location="${lib}/commons-codec-1.7.jar" />
-    	<pathelement location="${lib}/commons-compress-1.8.jar" />
+    	<pathelement location="${lib}/commons-compress-1.8.1.jar" />
     	<pathelement location="${lib}/commons-fileupload-1.2.2.jar" />
     	<pathelement location="${lib}/commons-io-2.3.jar" />
     	<pathelement location="${lib}/commons-jxpath-1.3.jar" />
diff --git a/lib/commons-compress-1.8.License b/lib/commons-compress-1.8.1.License
similarity index 100%
rename from lib/commons-compress-1.8.License
rename to lib/commons-compress-1.8.1.License
diff --git a/lib/commons-compress-1.8.jar b/lib/commons-compress-1.8.1.jar
similarity index 68%
rename from lib/commons-compress-1.8.jar
rename to lib/commons-compress-1.8.1.jar
index 940b06873..66b0a56bd 100644
Binary files a/lib/commons-compress-1.8.jar and b/lib/commons-compress-1.8.1.jar differ
diff --git a/pom.xml b/pom.xml
index 545bce1fe..a199ae06f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -313,7 +313,7 @@
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-compress</artifactId>
-            <version>1.8</version>
+            <version>1.8.1</version>
         </dependency>
         <dependency>
             <groupId>commons-fileupload</groupId>