Index: rustpython-common/Cargo.toml
===================================================================
--- rustpython-common.orig/Cargo.toml
+++ rustpython-common/Cargo.toml
@@ -34,7 +34,7 @@ version = "0.2.1"
 version = ">= 0.10.3"
 
 [dependencies.lexical-parse-float]
-version = "0.8.0"
+version = ">= 0.8.0, < 3"
 features = ["format"]
 
 [dependencies.libc]
