diff --git a/REQUIRE b/REQUIRE
index f44162a..49a1d8f 100644
--- a/REQUIRE
+++ b/REQUIRE
@@ -1,4 +1,4 @@
-julia 0.6
+julia 0.6-
 BinDeps
 SampledSignals 0.3.0
 RingBuffers 0.1.0