diff --git a/scripts/ansible b/scripts/ansible
index d9ca18c0e..8936e1d6c 100755
--- a/scripts/ansible
+++ b/scripts/ansible
@@ -38,7 +38,7 @@ if [ -f /etc/olpc-release ]; then
     pip install --upgrade pip setuptools wheel #EOL just do it
     pip install ansible==$GOOD_VER --disable-pip-version-check
 elif [ -f /etc/centos-release ]; then
-    yum install ansible
+    yum -y install ansible
 # 2018-09-07: the next 4 lines aren't needed according to https://docs.ansible.com/ansible/latest/installation_guide/intro_installation.html#latest-release-via-dnf-or-yum
 #    yum -y install ca-certificates nss epel-release
 #    yum -y install git bzip2 file findutils gzip hg svn sudo tar which unzip xz zip libselinux-python
diff --git a/scripts/ansible-2.6.x b/scripts/ansible-2.6.x
index 3733b00ab..aed997930 100755
--- a/scripts/ansible-2.6.x
+++ b/scripts/ansible-2.6.x
@@ -38,7 +38,7 @@ if [ -f /etc/olpc-release ]; then
     pip install --upgrade pip setuptools wheel #EOL just do it
     pip install ansible==$GOOD_VER --disable-pip-version-check
 elif [ -f /etc/centos-release ]; then
-    yum install ansible
+    yum -y install ansible
 # 2018-09-07: the next 4 lines aren't needed according to https://docs.ansible.com/ansible/latest/installation_guide/intro_installation.html#latest-release-via-dnf-or-yum
 #    yum -y install ca-certificates nss epel-release
 #    yum -y install git bzip2 file findutils gzip hg svn sudo tar which unzip xz zip libselinux-python