Update REQUIRE

ChrisRackauckas · web-flow · commit ea4632691580 · 2017-03-15T11:06:52.000-07:00
diff --git a/REQUIRE b/REQUIRE
@@ -7,3 +7,4 @@ ResettableStacks 0.0.1
 Juno 0.2.5
 Roots
 Iterators
+Compat 0.18.0
