diff --git a/src/lib.rs b/src/lib.rs
index bf6ab72..34eda2d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,7 +2,8 @@
 #![no_main]
 #![feature(naked_functions)]
 #![feature(asm_const)]
-#![feature(stdsimd)]
+#![feature(cfg_version)]
+#![cfg_attr(not(version("1.79")), feature(stdsimd))]
 #![feature(const_mut_refs)]
 #![feature(const_slice_from_raw_parts_mut)]
 #![cfg_attr(target_arch = "riscv64", feature(riscv_ext_intrinsics))]