diff --git a/Cargo.toml b/Cargo.toml
index f764157..da02066 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,11 +9,11 @@ name = "sqloxide"
 crate-type = ["cdylib"]
 
 [dependencies]
-pythonize = "0.21.1"
+pythonize = "0.20"
 serde = "1.0.171"
 
 [dependencies.pyo3]
-version = "0.21.2"
+version = "0.20"
 features = ["extension-module"]
 
 [dependencies.sqlparser]