diff --git a/.travis.yml b/.travis.yml
index 52b0b5f4a0b7c9bff4e7981519110e50ac092350..c3cd0a867291164930d964bfbe59b6cfd6d42620 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -18,10 +18,6 @@ addons:
       - libgsl-dev # dependency for gsl>copula>zinbwave
       - libmagick++-dev # dependency for magick
 
-before_install: 
-  r_binary_packages:
-    - knitr
-
 install: skip
 #install:
 #  - R -e 'install.packages("knitr")'