diff --git a/Installation/travisCI/before_script.sh b/Installation/travisCI/before_script.sh
index ec418e7f1f..8feb4cd4cd 100755
--- a/Installation/travisCI/before_script.sh
+++ b/Installation/travisCI/before_script.sh
@@ -7,10 +7,10 @@ mkdir -p $HOME/bin/gold
 chmod a+x $HOME/bin/gold/ld
 
 # prepare CCACHE
-(echo '#!/bin/bash'; echo 'ccache /usr/bin/gcc-4.9 "$@"') > $HOME/bin/gcc
+(echo '#!/bin/bash'; echo 'ccache /usr/bin/gcc-5 "$@"') > $HOME/bin/gcc
 chmod a+x $HOME/bin/gcc
                                                          
-(echo '#!/bin/bash'; echo 'ccache /usr/bin/g++-4.9 "$@"') > $HOME/bin/g++
+(echo '#!/bin/bash'; echo 'ccache /usr/bin/g++-5 "$@"') > $HOME/bin/g++
 chmod a+x $HOME/bin/g++
 
 # prepare files for unit test