diff --git a/Project.toml b/Project.toml
index e75a38c..868f974 100644
--- a/Project.toml
+++ b/Project.toml
@@ -23,7 +23,7 @@ Primes = "0.5"
 Random = "<0.0.1, 1"
 Reexport = "1"
 Test = "<0.0.1, 1"
-julia = "1.6"
+julia = "1.6.7"
 
 [extras]
 Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"