diff --git a/.travis.yml b/.travis.yml
index 81ac11d56..a29a141de 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,16 +9,12 @@ python:
 #  - "3.3" # failed due to setuptool version
 #  - "3.4" # failed due to numba (llvmlite)
   - "3.5"
-  - "3.5-dev"  # 3.5 development branch
   - "3.6"
-  - "3.6-dev"  # 3.6 development branch
+  - "3.7"
 
 install:
   - pip install --upgrade pip
   - pip install -r requirements_ci.txt
-  - pip install pytest
-  - pip install pytest-cov
-  - pip install coveralls
 
 # command to run tests
 script:
@@ -32,4 +28,4 @@ notifications:
     recipients:
       - yzhao062@gmail.com
   on_success: never # default: change
-  on_failure: always # default: always
\ No newline at end of file
+  on_failure: always # default: always
diff --git a/requirements_ci.txt b/requirements_ci.txt
index 267a6bf09..038071172 100644
--- a/requirements_ci.txt
+++ b/requirements_ci.txt
@@ -7,4 +7,8 @@ numba>=0.35
 scipy==1.1.0
 scikit_learn>=0.19.1
 tensorflow
-xgboost>=0.7
\ No newline at end of file
+xgboost>=0.7
+pytest
+pytest-cov
+coveralls
+