diff --git a/termwiz/Cargo.toml b/termwiz/Cargo.toml
index 8ed2e4e14..2e833bcfd 100644
--- a/termwiz/Cargo.toml
+++ b/termwiz/Cargo.toml
@@ -31,7 +31,7 @@ unicode-width = "~0.1"
 vte = { git = "https://github.com/wez/vte", branch="oscbigbuf" }
 
 [dev-dependencies]
-bincode = "1.1"
+varbincode = { path = "../varbincode" }
 
 [dependencies.num-derive]
 features = ["full-syntax"]
diff --git a/termwiz/src/color.rs b/termwiz/src/color.rs
index 04a5cbb04..abb2bfae2 100644
--- a/termwiz/src/color.rs
+++ b/termwiz/src/color.rs
@@ -244,8 +244,8 @@ mod tests {
 
     #[test]
     fn roundtrip_rgbcolor() {
-        let data = bincode::serialize(&RgbColor::from_named("DarkGreen").unwrap()).unwrap();
+        let data = varbincode::serialize(&RgbColor::from_named("DarkGreen").unwrap()).unwrap();
         eprintln!("serialized as {:?}", data);
-        let _decoded: RgbColor = bincode::deserialize(&data).unwrap();
+        let _decoded: RgbColor = varbincode::deserialize(data.as_slice()).unwrap();
     }
 }