diff --git a/doc/source/contributing.rst b/doc/source/contributing.rst
index 58ef9207..55acf8e9 100644
--- a/doc/source/contributing.rst
+++ b/doc/source/contributing.rst
@@ -216,7 +216,7 @@ To install the package on Ubuntu/Debian::
 
 To install the package on RHEL/CentOS/Fedora::
 
-   sudo yum -y install postgresql-devel
+   sudo yum install postgresql-devel
 
 If you need an ephemeral PostgreSQL server to test against, you can spin one
 up with Docker easily::
diff --git a/doc/source/installation.rst b/doc/source/installation.rst
index d6d6b962..31948ec4 100644
--- a/doc/source/installation.rst
+++ b/doc/source/installation.rst
@@ -13,14 +13,14 @@ Required dependencies
 
 ::
 
-    yum -y install gcc python-devel libffi-devel openssl-devel redhat-rpm-config
+    yum install gcc python-devel libffi-devel openssl-devel redhat-rpm-config
 
 Development or integration testing dependencies
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 ::
 
-    yum -y install python-setuptools libselinux-python libxml2-devel libxslt-devel
+    yum install python-setuptools libselinux-python libxml2-devel libxslt-devel
     easy_install pip
     pip install tox
 
@@ -32,14 +32,14 @@ Required dependencies
 
 ::
 
-    apt-get -y install gcc python-dev libffi-dev libssl-dev
+    apt-get install gcc python-dev libffi-dev libssl-dev
 
 Development or integration testing dependencies
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 ::
 
-    apt-get -y install python-pip libxml2-dev libxslt1-dev
+    apt-get install python-pip libxml2-dev libxslt1-dev
     pip install tox
 
 Installing ARA from trunk source
diff --git a/doc/source/webserver.rst b/doc/source/webserver.rst
index ef5faa73..52efd7a9 100644
--- a/doc/source/webserver.rst
+++ b/doc/source/webserver.rst
@@ -77,7 +77,7 @@ Install Apache+mod_wsgi
 
 ::
 
-    yum -y install httpd mod_wsgi
+    yum install httpd mod_wsgi
     systemctl enable httpd
     systemctl start httpd
 
@@ -175,7 +175,7 @@ Install Apache+mod_wsgi
 
 ::
 
-    apt-get install -y apache2 libapache2-mod-wsgi
+    apt-get install apache2 libapache2-mod-wsgi
     systemctl enable apache2
     systemctl start apache2