diff --git a/trikoder/oauth2-bundle/2.0/post-install.txt b/trikoder/oauth2-bundle/2.0/post-install.txt
index 4e8ee44b..dc3a46f0 100644
--- a/trikoder/oauth2-bundle/2.0/post-install.txt
+++ b/trikoder/oauth2-bundle/2.0/post-install.txt
@@ -14,5 +14,9 @@
   3. <question>Update the database</>
     * Update the database so bundle entities can be persisted using Doctrine: <comment>bin/console doctrine:schema:update --force</>
 
-  4. <question>Read the docs</>
+  4. <question>Install a PSR 7/17 implementation</>
+    i)   Require a PSR 7/17 implementation. We recommend that you use nyholm/psr7.
+    ii)  (Optional) Choose a different implementation package: https://github.com/trikoder/oauth2-bundle/blob/v2.x/docs/psr-implementation-switching.md
+
+  5. <question>Read the docs</>
     * Read the documentation at <comment>https://github.com/trikoder/oauth2-bundle/blob/v2.x/docs/basic-setup.md</>