diff --git a/doc/sources/guide/packaging-ios.rst b/doc/sources/guide/packaging-ios.rst
index 093f82acf..cbfda35cf 100644
--- a/doc/sources/guide/packaging-ios.rst
+++ b/doc/sources/guide/packaging-ios.rst
@@ -24,7 +24,7 @@ those dependencies::
     brew install autoconf automake libtool pkg-config
     brew link libtool
     sudo easy_install pip
-    sudo pip install cython==0.23
+    sudo pip install Cython==0.26.1
 
 For more detail, see :ref:`IOS Prerequisites <packaging_ios_prerequisites>`.
 Just ensure that everything is ok before starting the second step!
diff --git a/doc/sources/guide/packaging-osx.rst b/doc/sources/guide/packaging-osx.rst
index c96457d3b..8e7696559 100644
--- a/doc/sources/guide/packaging-osx.rst
+++ b/doc/sources/guide/packaging-osx.rst
@@ -36,7 +36,7 @@ Complete guide
 
 #. Install Cython and Kivy::
 
-    $ pip install -U Cython
+    $ pip install Cython==0.26.1
     $ pip install -U kivy
 
 #. Install PyInstaller::
diff --git a/doc/sources/installation/installation-osx.rst b/doc/sources/installation/installation-osx.rst
index 315757e82..6680d1f73 100644
--- a/doc/sources/installation/installation-osx.rst
+++ b/doc/sources/installation/installation-osx.rst
@@ -19,7 +19,7 @@ You can install Kivy with Homebrew and pip using the following steps:
 
     2. Install Cython and Kivy using pip::
 
-        $ pip install Cython==0.26
+        $ pip install Cython==0.26.1
         $ pip install kivy
 
     - To install the development version, use this in the second step::
@@ -55,7 +55,7 @@ You can install Kivy with Macports and pip using the following steps:
 
     5. Install Cython and Kivy using pip::
 
-        $ pip install Cython==0.26
+        $ pip install Cython==0.26.1
         $ pip install kivy
 
     - To install the development version, use this in the second step::
diff --git a/doc/sources/installation/installation-rpi.rst b/doc/sources/installation/installation-rpi.rst
index 81d6e79c8..89645f0cc 100644
--- a/doc/sources/installation/installation-rpi.rst
+++ b/doc/sources/installation/installation-rpi.rst
@@ -36,11 +36,11 @@ Manual installation (On Raspbian Jessie)
 
     git clone https://github.com/kivy/kivy
     cd kivy
-    
+
     make
     echo "export PYTHONPATH=$(pwd):\$PYTHONPATH" >> ~/.profile
     source ~/.profile
-    
+
 
 Manual installation (On Raspbian Wheezy)
 ----------------------------------------
@@ -70,7 +70,7 @@ Manual installation (On Raspbian Wheezy)
 
 #. Install Cython from sources (debian packages are outdated)::
 
-    sudo pip install -U cython
+    sudo pip install Cython==0.26.1
 
 #. Install Kivy globally on your system::
 
@@ -80,7 +80,7 @@ Manual installation (On Raspbian Wheezy)
 
     git clone https://github.com/kivy/kivy
     cd kivy
-    
+
     make
     echo "export PYTHONPATH=$(pwd):\$PYTHONPATH" >> ~/.profile
     source ~/.profile