diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0f7a6bd..df77c65 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,9 +6,20 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- to support python 3.13 the following versions where updated:
+  - gRPC version from 1.60.1 to 1.70.0 (JAVA_GRPC_VERSION, PYTHON_GRPC_VERSION)
+  - protoc version from 4.25.0 to 5.29.4 (PYTHON_PROTOC_VERSION)
+  - com.google.protobuf version from 0.9.1 to 0.9.6 
+
+### Fixed
+
+- T2iApiPackageTest: ``__pycache__`` directories are now skipped in the package check to avoid false errors.
+
 ## [4.6.0] - 2025-10-30
 
-- manipulation CreateNewContextStateWithAssociation for contexts
+- manipulation CreateNewContextStateWithAssociatioddfn for contexts
 
 ## [4.4.0] - 2025-07-03
 
diff --git a/config/versions.txt b/config/versions.txt
index 5d1c81f..59d3a07 100644
--- a/config/versions.txt
+++ b/config/versions.txt
@@ -1,6 +1,6 @@
 BASE_PACKAGE_VERSION=4.6.0
 COMMON_PROTOC_VERSION=25.0
 JAVA_PROTOC_VERSION=3.25.0
-JAVA_GRPC_VERSION=1.60.1
-PYTHON_PROTOC_VERSION=4.25.0
-PYTHON_GRPC_VERSION=1.60.1
+JAVA_GRPC_VERSION=1.70.0
+PYTHON_PROTOC_VERSION=5.29.4
+PYTHON_GRPC_VERSION=1.70.0
\ No newline at end of file
diff --git a/java/build.gradle.kts b/java/build.gradle.kts
index 7543bf9..c47486b 100644
--- a/java/build.gradle.kts
+++ b/java/build.gradle.kts
@@ -6,7 +6,7 @@ import org.jreleaser.model.Http.Authorization
 plugins {
     `java-library`
     `maven-publish`
-    id("com.google.protobuf") version "0.9.1"
+    id("com.google.protobuf") version "0.9.6"
     id("com.google.osdetector") version "1.7.1"
     id("org.jreleaser") version "1.19.0"
     signing
diff --git a/tests/python/test_package.py b/tests/python/test_package.py
index 1f9c166..368362d 100644
--- a/tests/python/test_package.py
+++ b/tests/python/test_package.py
@@ -1,6 +1,6 @@
 # This Source Code Form is subject to the terms of the MIT License.
 #
-# Copyright (c) 2022 Draegerwerk AG & Co. KGaA.
+# Copyright (c) 2022, 2026 Draegerwerk AG & Co. KGaA.
 # SPDX-License-Identifier: MIT
 
 import os
@@ -20,6 +20,9 @@ def test_all_packages(self):
         package_location = os.path.join(current_dir, relative_python_dir)
         missing__init__py = []
         for dir_path, _, filenames in os.walk(package_location):
+            # Skip __pycache__ directories - these are auto-generated by Python
+            if '__pycache__' in dir_path:
+                continue
             if '__init__.py' not in filenames:
                 missing__init__py.append(dir_path)