diff --git a/Project.toml b/Project.toml
index 48d3a05..be80837 100644
--- a/Project.toml
+++ b/Project.toml
@@ -19,6 +19,6 @@ DocumenterTools= "~0.1"
 FFTW = "1"
 PyCall = "1.91.2"
 PyPlot = "2.8.2"
-Julia = "1"
+julia = "1"
 Requires = "0.5.2"
 SeisMain = "0.1.0"