diff --git a/.travis.yml b/.travis.yml
index e1af48a..7a49976 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,6 @@ language: python
 
 matrix:
   include:
-    - python: 3.5
     - python: 3.6
     - python: 3.7
     - python: 3.8
diff --git a/docs/installation.rst b/docs/installation.rst
index a8bf6be..a99304b 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -6,7 +6,7 @@ Installation
 
 Compatibility
 -------------
-**pydfs-lineup-optimizer** works with following versions of python: Python: 3.8+
+**pydfs-lineup-optimizer** works with following versions of python: Python: 3.6+
 
 Installation
 ------------
diff --git a/tox.ini b/tox.ini
index ba9aaa6..d767f96 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,9 +1,8 @@
 [tox]
-envlist = mypy,py35-{pulp,mip},py36-{pulp,mip},py37-{pulp,mip},py38-{pulp,mip},py39-{pulp,mip}
+envlist = mypy,py36-{pulp,mip},py37-{pulp,mip},py38-{pulp,mip},py39-{pulp,mip}
 
 [travis]
 python =
-    3.5: py35,
     3.6: py36,
     3.7: py37,
     3.8: py38,