diff --git a/packages/compiler-singlepass/Cargo.toml b/packages/compiler-singlepass/Cargo.toml
index b6c002cc..3ab87c5f 100644
--- a/packages/compiler-singlepass/Cargo.toml
+++ b/packages/compiler-singlepass/Cargo.toml
@@ -17,4 +17,4 @@ crate-type = ["cdylib"]
 [dependencies]
 wasmer-engines = { path = "../engines/" }
 wasmer-compiler-singlepass = "2.1.1"
-pyo3 = { version = "0.14", features = ["extension-module"] }
+pyo3 = { version = "0.19", features = ["extension-module"] }