diff --git a/REQUIRE b/REQUIRE
index 1401c94..3e60738 100644
--- a/REQUIRE
+++ b/REQUIRE
@@ -1,9 +1,9 @@
-julia
+julia 0.6 0.7
 JuMP 0.18.0
-SCS
+SCS 0.4.0 0.4.1
 IntervalArithmetic 0.10
-JLD
-Memento
+JLD 0.8 0.9
+Memento 0.4 0.5
 Nemo
 Groups
 GroupRings