diff --git a/pom.xml b/pom.xml
index 62a3dc4662..336bba9d0c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -136,7 +136,7 @@
         <commons-configuration.version>1.10</commons-configuration.version>
         <commons-io.version>2.5</commons-io.version>
         <commons-lang.version>3.5</commons-lang.version>
-        <guava.version>20.0</guava.version>
+        <guava.version>15.0</guava.version>
         <osgi.version>6.0.0</osgi.version>
 
         <emf.version>2.12.0</emf.version>