diff --git a/README.md b/README.md
index d1665ead2313082053da12b58ca9adb8588df160..f15fb50f4c6779d36c3de4d533911143e3dbb6c2 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@ # Welcome to Gajim
 
 ### Runtime Requirements
 
-- python3.5 or higher
+- python3.7 or higher
 - python3-gi
 - python3-gi-cairo
 - gir1.2-gtk-3.0 (>=3.22)
diff --git a/setup.cfg b/setup.cfg
index e3ba9d3323f53870092205920b8184fe4dcee41d..d1e091d0dbb23929dc608e31e8e8f941e07eedb9 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -16,7 +16,7 @@ classifiers =
     Programming Language :: Python :: 3
 
 [options]
-python_requires = >=3.5
+python_requires = >=3.7
 packages = find:
 test_suite = test
 install_requires =
diff --git a/setup.py b/setup.py
index 18a3c3cdee1d9e069d903c7eb993a4409cb6fdb3..d151d6016537cfe69541e82b80a0100ad6cf6659 100644
--- a/setup.py
+++ b/setup.py
@@ -3,8 +3,8 @@
 import os
 import sys
 
-if sys.version_info < (3, 5):
-    sys.exit('Gajim needs Python 3.5+')
+if sys.version_info < (3, 7):
+    sys.exit('Gajim needs Python 3.7+')
 
 from setuptools import setup, find_packages
 from setuptools import Command