diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index 6749a33068..49cd488387 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -34,6 +34,7 @@ pyo3 = { version = "0.21.0", features = [
     "macros",
     "anyhow",
     "abi3",
+    "abi3-py39",
 ] }
 pyo3-log = "0.10.0"
 pythonize = "0.21.0"