diff --git a/src/lib.rs b/src/lib.rs
index dc44a4d..3406a6a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2921,7 +2921,7 @@ mod impl_proptest {
     use proptest::arbitrary::{Arbitrary, StrategyFor};
     use proptest::num::{f32, f64};
     use proptest::strategy::{FilterMap, Map, Strategy};
-    use std::convert::TryFrom;
+    use core::convert::TryFrom;
 
     macro_rules! impl_arbitrary {
         ($($f:ident),+) => {