diff --git a/py-polars/Cargo.lock b/py-polars/Cargo.lock
index cdaf505ea0ae..0f0da8715396 100644
--- a/py-polars/Cargo.lock
+++ b/py-polars/Cargo.lock
@@ -1929,7 +1929,7 @@ dependencies = [
 
 [[package]]
 name = "py-polars"
-version = "0.19.11"
+version = "0.19.12-rc.1"
 dependencies = [
  "ahash",
  "built",
diff --git a/py-polars/Cargo.toml b/py-polars/Cargo.toml
index 8250ba49d252..d7f3f9a34b62 100644
--- a/py-polars/Cargo.toml
+++ b/py-polars/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "py-polars"
-version = "0.19.11"
+version = "0.19.12-rc.1"
 edition = "2021"
 
 [lib]