diff --git a/Cargo.toml b/Cargo.toml
index 90379e45..0c64d4a8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,6 +18,7 @@ vulkano-win = "0.19.0"
 #shade_runner = {version = "0.1.1", git = "https://github.com/MitchellHansen/shade_runner"}
 shade_runner = {path = "../shade_runner"}
 
+specs = "0.16.1"
 gilrs = "0.7.2"
 cgmath = "0.17.0"
 simple-stopwatch="0.1.4"