diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b856fae..4be7908 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,8 +35,6 @@ jobs:
           - { os: ubuntu-latest, target: x86_64,  target-triple: x86_64-unknown-linux-musl,            manylinux: musllinux_1_1 }
           - { os: ubuntu-latest, target: aarch64, target-triple: aarch64-unknown-linux-gnu,            manylinux: auto }
           - { os: ubuntu-latest, target: aarch64, target-triple: aarch64-unknown-linux-musl,           manylinux: musllinux_1_1 }
-          - { os: ubuntu-latest, target: armv7,   target-triple: armv7-unknown-linux-gnueabihf,        manylinux: auto }
-          - { os: ubuntu-latest, target: armv7,   target-triple: armv7-unknown-linux-musleabihf,       manylinux: musllinux_1_1 }
           - { os: macos-15-intel, target: x86_64,     target-triple: x86_64-apple-darwin }
           - { os: macos-latest, target: aarch64,    target-triple: aarch64-apple-darwin }
           - { os: macos-latest, target: universal2, target-triple: x86_64-apple-darwin }
diff --git a/rbufrp/Cargo.toml b/rbufrp/Cargo.toml
index 7812dd8..868b1ee 100644
--- a/rbufrp/Cargo.toml
+++ b/rbufrp/Cargo.toml
@@ -11,6 +11,6 @@ crate-type = ["cdylib"]
 [dependencies]
 # "extension-module" tells pyo3 we want to build an extension module (skips linking against libpython.so)
 # "abi3-py39" tells pyo3 (and maturin) to build using the stable ABI with minimum Python version 3.9
-pyo3 = { version = "0.27.1", features = ["extension-module", "abi3-py38"] }
+pyo3 = { version = "0.27.1", features = ["extension-module"] }
 
 rbufr = { path = "../rbufr", features = ["python_bindings"] }
diff --git a/rbufrp/src/rbufrp/__init__.py b/rbufrp/src/rbufrp/__init__.py
index ec64f38..9046ea2 100644
--- a/rbufrp/src/rbufrp/__init__.py
+++ b/rbufrp/src/rbufrp/__init__.py
@@ -4,7 +4,7 @@ rbufrp - BUFR (Binary Universal Form for the Representation of meteorological da
 
 import os
 from pathlib import Path
-from typing import Optional
+from typing import Optional, Union
 
 # Import the Rust extension module
 from ._core import (
@@ -51,7 +51,7 @@ def _find_tables_directory() -> Optional[Path]:
     return None
 
 
-def initialize_tables_path(custom_path: Optional[str | Path] = None) -> None:
+def initialize_tables_path(custom_path: Optional[Union[str, Path]] = None) -> None:
     if custom_path:
         custom_path = Path(custom_path)
         if not custom_path.exists():