diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index ff133e510cb02d574e059b29911e3d08b4d96024..84541e6b1c1fc6556da224ce9c2452e876d47f6e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: python:2.7
+image: python:3.6
 
 
 variables:
@@ -8,8 +8,8 @@ variables:
 
 before_script:
   - apt-get update && apt-get install -y --allow-unauthenticated libsasl2-dev libssl-dev locales locales-all
-  - pip install -r requirements.txt --default-timeout=180
-  - pip install -r requirements-dev.txt --default-timeout=180
+  - pip install -r requirements.txt --default-timeout=180 -i https://pypi.lcsb.uni.lu/simple/
+  - pip install -r requirements-dev.txt --default-timeout=180 -i https://pypi.lcsb.uni.lu/simple/
 
 test:
     services: