diff --git a/de.prob.core/build.gradle b/de.prob.core/build.gradle
index 60dd16f13dc3acdbf16941f1423292a2600a4663..cddfecca61a0d837c925c245086513e41510681e 100644
--- a/de.prob.core/build.gradle
+++ b/de.prob.core/build.gradle
@@ -13,7 +13,7 @@ dependencies {
  compile group: "de.prob", name: "theorymapping", version: parser_version , changing: true
  compile 'commons-lang:commons-lang:2.6'
  compile 'commons-codec:commons-codec:1.6'
- compile 'com.thoughtworks.xstream:xstream:1.4.3'
+ compile 'com.thoughtworks.xstream:xstream:1.4.7'
  compile group: 'net.java.dev.jna', name: 'jna', version: '3.4.0'
  compile group: 'edu.berkeley.eecs.ptolemy', name: 'jfmi', version: '1.0.2-SNAPSHOT'
 }
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