diff --git a/doc/index.rst b/doc/index.rst
index d83f09de6b08..fc911ea12296 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -32,7 +32,7 @@ Installation
 
         .. code-block:: bash
 
-            conda install matplotlib
+            conda install -c conda-forge matplotlib
 
 Further details are available in the :doc:`Installation Guide <users/installing/index>`.
 
diff --git a/doc/users/getting_started/index.rst b/doc/users/getting_started/index.rst
index 4b90ab09b860..ec1f769e5e78 100644
--- a/doc/users/getting_started/index.rst
+++ b/doc/users/getting_started/index.rst
@@ -20,7 +20,7 @@ Installation quick-start
 
         .. code-block:: bash
 
-            conda install matplotlib
+            conda install -c conda-forge matplotlib
 
 Further details are available in the :doc:`Installation Guide </users/installing/index>`.