diff --git a/a/Advisor/Advisor-2019_update4.eb b/a/Advisor/Advisor-2019_update4.eb
index 1ef75483..d5260c4f 100644
--- a/a/Advisor/Advisor-2019_update4.eb
+++ b/a/Advisor/Advisor-2019_update4.eb
@@ -14,6 +14,10 @@ toolchain = SYSTEM
 
 sources = ['advisor_%(version)s.tar.gz']
 
+dependencies = [
+   ('X11', '20190311'),
+]
+
 dontcreateinstalldir = 'True'
 
 # license file