diff --git a/.drone.yml b/.drone.yml
index 597415c..de4821e 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -9,12 +9,13 @@ pipeline:
         commands:
             - pip install tox
             - tox -e "${TOXENV}-${DATABASE}"
+        volumes:
+            - /var/lib/cache:/root/.cache
     notify:
         image: drillster/drone-email
-        from: drone@localhost
-        host: smtp
-        port: 25
+        from: drone@datalifeit.es
         skip_verify: true
+        secrets: [ email_host, email_port ]
         when:
             status: [ changed, failure ]
 
@@ -29,27 +30,21 @@ services:
 
 matrix:
     include:
-        - IMAGE: python:2.7
-          TOXENV: py27
-          DATABASE: sqlite
-        - IMAGE: python:2.7
-          TOXENV: py27
-          DATABASE: postgresql
-        - IMAGE: python:3.4
-          TOXENV: py34
-          DATABASE: sqlite
-        - IMAGE: python:3.4
-          TOXENV: py34
-          DATABASE: postgresql
-        - IMAGE: python:3.5
-          TOXENV: py35
-          DATABASE: sqlite
-        - IMAGE: python:3.5
-          TOXENV: py35
-          DATABASE: postgresql
         - IMAGE: python:3.6
           TOXENV: py36
           DATABASE: sqlite
         - IMAGE: python:3.6
           TOXENV: py36
           DATABASE: postgresql
+        - IMAGE: python:3.7
+          TOXENV: py37
+          DATABASE: sqlite
+        - IMAGE: python:3.7
+          TOXENV: py37
+          DATABASE: postgresql
+        - IMAGE: python:3.8
+          TOXENV: py38
+          DATABASE: sqlite
+        - IMAGE: python:3.8
+          TOXENV: py38
+          DATABASE: postgresql
\ No newline at end of file
diff --git a/setup.py b/setup.py
index e5f9ab8..658d01d 100644
--- a/setup.py
+++ b/setup.py
@@ -58,9 +58,8 @@ else:
 dependency_links = [
     ('git+https://github.com/trytonspain/'
         'trytond-stock_kit@%(branch)s'
-        '#egg=trytonspain-stock_kit-%(series)s' % {
+        '#egg=trytonspain-stock_kit' % {
             'branch': branch,
-            'series': series,
             }),
     ]
 if minor_version % 2:
diff --git a/tox.ini b/tox.ini
index 3d844ea..da952cd 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,18 +1,15 @@
 [tox]
-envlist = {py27,py34,py35,py36}-{sqlite,postgresql,mysql},pypy-{sqlite,postgresql}
+envlist = {py36,py37,py38}-{sqlite,postgresql},pypy3-{sqlite,postgresql}
 
 [testenv]
 commands = {envpython} setup.py test
 deps =
-    {py27,py34,py35,py36}-postgresql: psycopg2 >= 2.5
-    pypy-postgresql: psycopg2cffi >= 2.5
-    mysql: MySQL-python
-    sqlite: sqlitebck
+    {py36,py37,py38}-postgresql: psycopg2 >= 2.5
+    pypy3-postgresql: psycopg2cffi >= 2.5
+    {py36}-sqlite: sqlitebck
 setenv =
     sqlite: TRYTOND_DATABASE_URI={env:SQLITE_URI:sqlite://}
     postgresql: TRYTOND_DATABASE_URI={env:POSTGRESQL_URI:postgresql://}
-    mysql: TRYTOND_DATABASE_URI={env:MYSQL_URI:mysql://}
     sqlite: DB_NAME={env:SQLITE_NAME::memory:}
     postgresql: DB_NAME={env:POSTGRESQL_NAME:test}
-    mysql: DB_NAME={env:MYSQL_NAME:test}
-install_command = pip install --pre --process-dependency-links {opts} {packages}
+install_command = pip install --pre {opts} {packages}
\ No newline at end of file