diff --git a/pom.xml b/pom.xml
index 82655d3bf..06c4dc03e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
 
     <groupId>net.yacy</groupId>
     <artifactId>yacycore</artifactId>
-    <version>1.68</version>
+    <version>1.69</version>
     <packaging>jar</packaging>
     <description>YaCy - a Peer to Peer Web Search Engine</description>
     <name>YaCy</name>
@@ -335,7 +335,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>15.0</version>
+            <version>16.0.1</version>
         </dependency>
         <dependency>
             <groupId>org.htmlparser</groupId>
@@ -362,11 +362,6 @@
             <artifactId>icu4j</artifactId>
             <version>4.8.1.1</version>
         </dependency>
-        <dependency>
-            <groupId>com.hp.hpl.jena</groupId>
-            <artifactId>iri</artifactId>
-            <version>0.8</version>
-        </dependency>
         <dependency>
             <groupId>org</groupId>
             <artifactId>jaudiotagger</artifactId>
@@ -385,7 +380,7 @@
         <dependency>
             <groupId>org.apache.pdfbox</groupId>
             <artifactId>jempbox</artifactId>
-            <version>1.8.3</version>
+            <version>1.8.4</version>
         </dependency>
         <dependency>
             <groupId>com.jcraft</groupId>
@@ -475,7 +470,7 @@
         <dependency>
             <groupId>org.apache.pdfbox</groupId>
             <artifactId>pdfbox</artifactId>
-            <version>1.8.3</version>
+            <version>1.8.4</version>
         </dependency>
         <dependency>
             <groupId>org.apache.poi</groupId>