diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 6763ce51..e75eb4c2 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -13,10 +13,10 @@ on:
 jobs:
   build:
 
-    runs-on: ubuntu-20.04  # Downgrade Ubuntu to 20.04 to fix missing Python 3.6
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
 
     steps:
     - uses: actions/checkout@v3
diff --git a/gns3server/run.py b/gns3server/run.py
index 672cc357..c15d976e 100644
--- a/gns3server/run.py
+++ b/gns3server/run.py
@@ -235,9 +235,9 @@ def run():
             return
         log.info("HTTP authentication is enabled with username '{}'".format(user))
 
-    # we only support Python 3 version >= 3.6
-    if sys.version_info < (3, 6, 0):
-        raise SystemExit("Python 3.6 or higher is required")
+    # we only support Python 3 version >= 3.7
+    if sys.version_info < (3, 7, 0):
+        raise SystemExit("Python 3.7 or higher is required")
 
     user_log.info("Running with Python {major}.{minor}.{micro} and has PID {pid}".format(major=sys.version_info[0], minor=sys.version_info[1],
                                                                                          micro=sys.version_info[2], pid=os.getpid()))
diff --git a/requirements.txt b/requirements.txt
index f0657c38..8191f4c4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,9 @@
-jsonschema>=4.17.3,<4.18; python_version >= '3.7' # v4.17.3 is the last version to support Python 3.7
-jsonschema==3.2.0; python_version < '3.7'  # v3.2.0 is the last version to support Python 3.6
-aiohttp>=3.8.5,<3.9; python_version <= '3.7'
+jsonschema>=4.17.3,<4.18  # v4.17.3 is the last version to support Python 3.7
+aiohttp>=3.8.6,<3.9; python_version == '3.7'   # v3.8.6 is the last version to support Python 3.7
 aiohttp>=3.9.0,<3.10; python_version > '3.7'
 aiohttp-cors>=0.7.0,<0.8
-aiofiles>=23.2.1,<23.3; python_version >= '3.7'
-aiofiles==0.8.0; python_version < '3.7'  # v0.8.0 is the last version to support Python 3.6
-Jinja2>=3.1.2,<3.2; python_version >= '3.7'
-Jinja2==3.0.3; python_version < '3.7'  # v3.0.3 is the last version to support Python 3.6
+aiofiles>=23.2.1,<23.3
+Jinja2>=3.1.2,<3.2
 sentry-sdk==1.39.2,<1.40
 psutil==5.9.8
 async-timeout>=4.0.2,<4.1
@@ -15,5 +12,4 @@ py-cpuinfo>=9.0.0,<10.0
 platformdirs>=2.4.0
 importlib-resources>=1.3; python_version < '3.9'
 truststore>=0.8.0; python_version >= '3.10'
-setuptools>=60.8.1; python_version >= '3.7'
-setuptools==59.6.0; python_version < '3.7'  # v59.6.0 is the last version to support Python 3.6
+setuptools>=60.8.1
diff --git a/setup.py b/setup.py
index 5ee8f8be..4fdee869 100644
--- a/setup.py
+++ b/setup.py
@@ -23,9 +23,9 @@ import subprocess
 from setuptools import setup, find_packages
 from setuptools.command.test import test as TestCommand
 
-# we only support Python 3 version >= 3.5.3
-if len(sys.argv) >= 2 and sys.argv[1] == "install" and sys.version_info < (3, 5, 3):
-    raise SystemExit("Python 3.5.3 or higher is required")
+# we only support Python 3 version >= 3.7
+if len(sys.argv) >= 2 and sys.argv[1] == "install" and sys.version_info < (3, 7):
+    raise SystemExit("Python 3.7 or higher is required")
 
 
 class PyTest(TestCommand):
@@ -89,7 +89,7 @@ setup(
     include_package_data=True,
     zip_safe=False,
     platforms="any",
-    python_requires='>=3.6.0',
+    python_requires='>=3.7',
     setup_requires=["setuptools>=17.1"],
     classifiers=[
         "Development Status :: 5 - Production/Stable",
@@ -103,7 +103,6 @@ setup(
         "Operating System :: Microsoft :: Windows",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3 :: Only",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",