diff --git a/Cargo.toml b/Cargo.toml
index bb6edc9..a7a0e12 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ crate-type = ["cdylib"]
 [dependencies]
 i_float = "^0.1.0"
 i_shape = "^0.1.0"
-i_overlay = "^0.1.0"
+i_overlay = "^0.2.0"
 
 
 wasm-bindgen = "0.2"