diff --git a/rust/ffi/node/Cargo.toml b/rust/ffi/node/Cargo.toml
index 1b409e30..46b0bd98 100644
--- a/rust/ffi/node/Cargo.toml
+++ b/rust/ffi/node/Cargo.toml
@@ -14,7 +14,7 @@ arrow-array = { workspace = true }
 arrow-ipc = { workspace = true }
 arrow-schema = { workspace = true }
 chrono = { workspace = true }
-conv = "0.3.4"
+conv = "0.3.3"
 once_cell = "1"
 futures = "0.3"
 half = { workspace = true }