diff --git a/Compiler/geant4/files/variants b/Compiler/geant4/files/variants
index 92ed55b..ee2ef3f 100644
--- a/Compiler/geant4/files/variants
+++ b/Compiler/geant4/files/variants
@@ -1 +1,3 @@
-geant4/10.05	unstable	gcc/7.3.0 clhep/2.4.1.0 b:libexpat/2.2.6 b:cmake/3.9.6
+geant4/10.05			unstable	gcc/7.3.0 clhep/2.4.1.0 b:libexpat/2.2.6 b:cmake/3.9.6
+geant4/10.5			unstable	gcc/7.3.0 clhep/2.4.1.0 b:libexpat/2.2.6 b:cmake/3.13.3
+geant4/10.5_multithreaded	unstable	gcc/7.3.0 clhep/2.4.1.0 b:libexpat/2.2.6 b:cmake/3.13.3