diff --git a/install.sh b/install.sh
index 98a0fa5..df65165 100755
--- a/install.sh
+++ b/install.sh
@@ -1,5 +1,4 @@
 #!/bin/bash
 
 git submodule update --init --recursive
-pip2 install --user pyflakes --upgrade
-pip3 install --user pynvim --upgrade
+pip3 install --user --no-binary :all: pynvim