diff --git a/lib/rs/test/Cargo.toml b/lib/rs/test/Cargo.toml
index 8655a76..50dec19 100644
--- a/lib/rs/test/Cargo.toml
+++ b/lib/rs/test/Cargo.toml
@@ -6,7 +6,7 @@
 publish = false
 
 [dependencies]
-clap = "2.18.0"
+clap = "<2.28.0"
 ordered-float = "0.3.0"
 try_from = "0.2.0"