diff --git a/.travis.yml b/.travis.yml
index 90dced0d92750181745c64a4178b12fc27e15b52..7c5be4b8ba5e3a6bb8421d614e73276bec427081 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,6 +17,10 @@ jobs:
       python: "3.8"
       script:
         - pytest --cov=./ --cov-report=xml
+    - stage: test
+      python: "3.6"
+      script:
+        - pytest --cov=./ --cov-report=xml
     - stage: test
       python: "3.7"
       script:
diff --git a/setup.cfg b/setup.cfg
index ce6c0aca44cd5c9c9dfbccf267573cbfe8724794..de2ae17f30c48c6c33627f36e6d19d6d4dc2affc 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -5,6 +5,8 @@ name = minijson
 long-description = file: README.md
 long-description-content-type = text/markdown; charset=UTF-8
 author = Piotr Maślanka
+license_files =
+    LICENSE.md
 author_email = piotr.maslanka@dronehub.ai
 description = A library for serializing JSON in a small binary format
 url = https://github.com/Dronehub/minijson
@@ -15,6 +17,7 @@ project-urls =
 classifier =
     Development Status :: 4 - Beta
     Programming Language :: Python
+    Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
@@ -33,4 +36,4 @@ max-line-length = 100
 universal = 0
 
 [options]
-python_requires = !=2.7.*,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*
+python_requires = !=2.7.*,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*