diff --git a/.gitignore b/.gitignore
index 505c4b1..0707389 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,6 @@ tests/.cache
 .coverage
 .cache
 .DS_Store
+.vscode/
+.eggs/
+build/
diff --git a/.travis.yml b/.travis.yml
index 57d1255..b537b01 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,6 @@
-sudo: false
 dist: trusty
 language: python
 python:
-  - "2.7.6"
   - "2.7"
   - "3.4"
   - "3.5"
@@ -15,4 +13,4 @@ script:
   - flake8 slackeventsapi
   - py.test --cov-report= --cov=slackeventsapi tests
 after_success:
-  - codecov -e $TRAVIS_PYTHON_VERSION
\ No newline at end of file
+  - codecov -e $TRAVIS_PYTHON_VERSION
diff --git a/requirements-dev.txt b/requirements-dev.txt
index fb5bb96..c116883 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,11 +1,12 @@
 coveralls==1.1
 ipdb==0.9.3
 ipython==4.1.2
-pdbpp==0.8.3
+pdbpp==0.10.2
 pytest>=3.2.0,<4.0.0
 pytest-flask==0.10.0
 pytest-mock>=1.6.3
 pytest-cov==2.5.1
 pytest-pythonpath==0.7.1
 testfixtures==5.3.1
-tox==2.9.1
\ No newline at end of file
+tox==2.9.1
+werkzeug==0.16.1
\ No newline at end of file