diff --git a/requirements/edx/edx-private.txt b/requirements/edx/edx-private.txt
index 47135cb068..c932f04ab4 100644
--- a/requirements/edx/edx-private.txt
+++ b/requirements/edx/edx-private.txt
@@ -2,3 +2,10 @@
 
 -e git+ssh://git@github.com/jazkarta/edX-jsdraw.git@9fcd333aaa2ac3df65dd247b601ce0b56bb10cad#egg=edx-jsdraw
 -e git+https://github.com/gsehub/xblock-mentoring.git@b779446e9f51b9a1576d514cc14166907316a106#egg=xblock-mentoring
+
+# Prototype XBlocks from edX learning sciences limited roll-outs and user testing. 
+# Concept XBlock, in particular, is nowhere near finished and an early prototype. 
+
+-e git+https://github.com/pmitros/ConceptXBlock.git@2376fde9ebdd83684b78dde77ef96361c3bd1aa0#egg=concept-xblock
+-e git+https://github.com/pmitros/DoneXBlock.git@72b6efdcd92471905670c4d344055fccf6bb16b0#egg=done-xblock
+-e git+https://github.com/pmitros/AudioXBlock.git@9540b13bcdf25225191d8a1e73862deb1f1f30f8#egg=audio-xblock
diff --git a/requirements/edx/github.txt b/requirements/edx/github.txt
index 7aec45c797..d5bc5ec1df 100644
--- a/requirements/edx/github.txt
+++ b/requirements/edx/github.txt
@@ -29,8 +29,3 @@
 -e git+https://github.com/edx/edx-ora2.git@release-2014-06-02T15.45#egg=edx-ora2
 -e git+https://github.com/edx/opaque-keys.git@91b7ec93cfb57c6739332e85805296626b4fb1db#egg=opaque-keys
 git+https://github.com/edx/ease.git@a990b25ed4238acb1b15ee6f027465db3a10960e#egg=ease
-
-# Prototype XBlocks for limited roll-outs and user testing. These are not for general use.
--e git+https://github.com/pmitros/ConceptXBlock.git@2376fde9ebdd83684b78dde77ef96361c3bd1aa0#egg=concept-xblock
--e git+https://github.com/pmitros/DoneXBlock.git@72b6efdcd92471905670c4d344055fccf6bb16b0#egg=done-xblock
--e git+https://github.com/pmitros/AudioXBlock.git@9540b13bcdf25225191d8a1e73862deb1f1f30f8#egg=audio-xblock