diff --git a/vim/vimrc b/vim/vimrc
index 2f9b7de..6c692e4 100644
--- a/vim/vimrc
+++ b/vim/vimrc
@@ -78,8 +78,8 @@ Plug 'tomasr/molokai'
   match ErrorMsg '\s\+$'
 
 " Deoplete : Fancy vim8+/nvim autocomplete framework
-if (has('python3') || has('nvim'))
-  Plug 'Shougo/deoplete.nvim'
+if (has('python3') || has('nvim')) && executable('pip3')
+  Plug 'Shougo/deoplete.nvim',        {'do': 'pip3 install --user --upgrade pynvim'}
   " completion source
   Plug 'Shougo/neco-syntax'
   " running on non-nvim instances requires the following