diff --git a/core/setup.py b/core/setup.py
index eb9f1830d..deae982b2 100644
--- a/core/setup.py
+++ b/core/setup.py
@@ -27,7 +27,7 @@ def get_version():
 
 
 setup(name='eo-learn-core',
-      python_requires='>=3.5',
+      python_requires='>=3.5,<3.7',
       version=get_version(),
       description='Core Machine Learning Framework at Sinergise',
       long_description=get_long_description(),
diff --git a/coregistration/setup.py b/coregistration/setup.py
index 1806c91a0..52f7a389d 100644
--- a/coregistration/setup.py
+++ b/coregistration/setup.py
@@ -27,7 +27,7 @@ def get_version():
 
 
 setup(name='eo-learn-coregistration',
-      python_requires='>=3.5',
+      python_requires='>=3.5,<3.7',
       version=get_version(),
       description='A collection of image co-registration utilities and EOTasks',
       long_description=get_long_description(),
diff --git a/features/setup.py b/features/setup.py
index ad2ed4cf1..9b605fe82 100644
--- a/features/setup.py
+++ b/features/setup.py
@@ -27,7 +27,7 @@ def get_version():
 
 
 setup(name='eo-learn-features',
-      python_requires='>=3.5',
+      python_requires='>=3.5,<3.7',
       version=get_version(),
       description='A collection of feature manipulation utilities and EOTasks',
       long_description=get_long_description(),
diff --git a/geometry/setup.py b/geometry/setup.py
index 594dc0ef3..c06f5f1a9 100644
--- a/geometry/setup.py
+++ b/geometry/setup.py
@@ -27,7 +27,7 @@ def get_version():
 
 
 setup(name='eo-learn-geometry',
-      python_requires='>=3.5',
+      python_requires='>=3.5,<3.7',
       version=get_version(),
       description='A collection of geometry utilities and EOTasks',
       long_description=get_long_description(),
diff --git a/io/setup.py b/io/setup.py
index cb305d4ec..b95fac35f 100644
--- a/io/setup.py
+++ b/io/setup.py
@@ -27,7 +27,7 @@ def get_version():
 
 
 setup(name='eo-learn-io',
-      python_requires='>=3.5',
+      python_requires='>=3.5,<3.7',
       version=get_version(),
       description='A collection of input/output utilities and EOTasks',
       long_description=get_long_description(),
diff --git a/mask/setup.py b/mask/setup.py
index 1dfc066eb..8581795dd 100644
--- a/mask/setup.py
+++ b/mask/setup.py
@@ -27,7 +27,7 @@ def get_version():
 
 
 setup(name='eo-learn-mask',
-      python_requires='>=3.5',
+      python_requires='>=3.5,<3.7',
       version=get_version(),
       description='A collection of masking utilities and EOTasks',
       long_description=get_long_description(),
diff --git a/ml_tools/setup.py b/ml_tools/setup.py
index 07ee395b2..ff6c9987a 100644
--- a/ml_tools/setup.py
+++ b/ml_tools/setup.py
@@ -27,7 +27,7 @@ def get_version():
 
 
 setup(name='eo-learn-ml-tools',
-      python_requires='>=3.5',
+      python_requires='>=3.5,<3.7',
       version=get_version(),
       description='A collection of Machine Learning utilities',
       long_description=get_long_description(),
diff --git a/setup.py b/setup.py
index e0464d10a..f6d9a979e 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@ def get_long_description():
 
 
 setup(name='eo-learn',
-      python_requires='>=3.5',
+      python_requires='>=3.5,<3.7',
       version='0.3.0',
       description='Earth observation processing framework for machine learning in Python',
       long_description=get_long_description(),