diff --git a/lib/jena/arq.jar b/lib/jena/arq.jar
index 5fb8d9e904739bd4b015e9f4639dcbe1a8e48dfe..3040a9969b490fda311e28999b1fdd58a8efa6c1 100644
Binary files a/lib/jena/arq.jar and b/lib/jena/arq.jar differ
diff --git a/lib/jena/iri.jar b/lib/jena/iri.jar
index 811201a584c273bb723bfd6d3276748817538839..f096c689c7582f132fe6010015f4505acca6ddfd 100644
Binary files a/lib/jena/iri.jar and b/lib/jena/iri.jar differ
diff --git a/lib/jena/jena.jar b/lib/jena/jena.jar
index 796d87b367bd169c579db1c0ee209a079df15346..efc64a94f5f5d5e4db08db92c70f4a7ff3a75ca2 100644
Binary files a/lib/jena/jena.jar and b/lib/jena/jena.jar differ
diff --git a/lib/jena/version.txt b/lib/jena/version.txt
index 9ceb7838e058ca6380f398ab4ef45fbd0493d44b..3dcf0a34cd64c6f0684522a01d57c4e2e4f85864 100644
--- a/lib/jena/version.txt
+++ b/lib/jena/version.txt
@@ -1,7 +1,7 @@
-jena-2.6.2
-arq-2.8.1
+jena-2.6.4
+arq-2.8.7
 icu4j-3.4.4
-iri-0.7
+iri-0.8
 
 lucene-core-2.3.1
 slf4j-api-1.5.6