diff --git a/tools/demobench/build.gradle b/tools/demobench/build.gradle
index 650b7582fa..f2cf5ad5ea 100644
--- a/tools/demobench/build.gradle
+++ b/tools/demobench/build.gradle
@@ -2,7 +2,6 @@ buildscript {
     ext.tornadofx_version = '1.6.2'
     ext.jna_version = '4.1.0'
     ext.purejavacomm_version = '0.0.17'
-    ext.guava_version = '14.0.1'
     ext.controlsfx_version = '8.40.12'
 
     ext.java_home = System.properties.'java.home'