diff --git a/arrow-pyarrow-integration-testing/Cargo.toml b/arrow-pyarrow-integration-testing/Cargo.toml
index 8c60c086c29a..129d0eca3907 100644
--- a/arrow-pyarrow-integration-testing/Cargo.toml
+++ b/arrow-pyarrow-integration-testing/Cargo.toml
@@ -34,4 +34,4 @@ crate-type = ["cdylib"]
 
 [dependencies]
 arrow = { path = "../arrow", features = ["pyarrow"] }
-pyo3 = { version = "0.20", features = ["extension-module"] }
+pyo3 = { version = "0.21", features = ["extension-module"] }