diff --git a/Cargo.toml b/Cargo.toml
index 43ca683b..5cb5b461 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ name = "cocoindex"
 # Will be overridden for specific release versions.
 version = "999.0.0"
 edition = "2024"
-rust-version = "1.90"
+rust-version = "1.89"
 license = "Apache-2.0"
 
 [profile.release]