diff --git a/.github/workflows/python-latest.yml b/.github/workflows/python-latest.yml
index 4277c97..ef11384 100644
--- a/.github/workflows/python-latest.yml
+++ b/.github/workflows/python-latest.yml
@@ -52,7 +52,7 @@ jobs:
         python -m pip install -r requirements.txt -r test-requirements.txt
     - name: Lint
       run: |
-        python -m check_python_versions --expect 3.6- --only setup.py
+        python -m check_python_versions --expect 3.9- --only setup.py
     - name: Test
       env:
         TEST_CONFIGURATION_ACCESS_TOKEN: ${{ secrets.TEST_CONFIGURATION_ACCESS_TOKEN }}
diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 1c7639b..3ad9d4d 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -17,7 +17,7 @@ jobs:
     strategy:
       matrix:
       # see https://www.python.org/downloads/
-        python-version: [ '3.7', '3.12' ]
+        python-version: [ '3.9', '3.12' ]
 
     steps:
     - uses: actions/checkout@v4
diff --git a/README.md b/README.md
index ce0af34..bcb3436 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ This repository contains Aspose.BarCode Cloud SDK for Python source code. This S
 
 Supported Python versions:
 
-- Python 3.7+
+- Python 3.9+
 
 To use these SDKs, you will need Client Id and Client Secret which can be looked up at [Aspose Cloud Dashboard](https://dashboard.aspose.cloud/applications) (free registration in Aspose Cloud is required for this).
 
diff --git a/requirements.txt b/requirements.txt
index fe4f68b..1bdb3e1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-certifi >= 2017.4.17
+certifi >= 2024.7.4
 python-dateutil >= 2.1
-urllib3 >= 1.21.1, <2.0
+urllib3 >= 2.5.0, <3.0
diff --git a/scripts/run_snippet.sh b/scripts/run_snippet.sh
old mode 100644
new mode 100755
index b86f58e..5dda509
--- a/scripts/run_snippet.sh
+++ b/scripts/run_snippet.sh
@@ -8,6 +8,6 @@ SCRIPT_DIR=$3
 CONFIG_FILE_PATH=$4
 echo "Run snippet file: $FILE_PATH"
 
-python ${SCRIPT_DIR}/insert-credentials.py $FILE_PATH $CONFIG_FILE_PATH $RUN_DIR
+python "${SCRIPT_DIR}/insert-credentials.py" "$FILE_PATH" "$CONFIG_FILE_PATH" "$RUN_DIR"
 
-python ./$RUN_DIR/"${FILE_PATH##*/}" || exit 1
\ No newline at end of file
+python "./$RUN_DIR/${FILE_PATH##*/}" || exit 1
diff --git a/scripts/run_snippets.sh b/scripts/run_snippets.sh
old mode 100644
new mode 100755
diff --git a/setup.py b/setup.py
index ca16bac..c589cc6 100644
--- a/setup.py
+++ b/setup.py
@@ -35,9 +35,6 @@
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3.11",
diff --git a/test-requirements.txt b/test-requirements.txt
index 1880f74..3f240b6 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,6 +1,5 @@
 pytest
 pytest-cov
 requests
-mock; python_version < "3"
-black; python_version > "3.7"
-check-python-versions; python_version > "3.7"
+black
+check-python-versions