diff --git a/requirements.txt b/requirements.txt
index b3a861ca2b07e8f372b1ff58d4aeedcc1a192f05..9c597f843199953eb6cd4f8fb5988ec13c7550b2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ sympy==1.1.1
 git+https://github.com/inducer/modepy#egg=modepy
 git+https://github.com/inducer/pyopencl#egg=pyopencl
 git+https://github.com/inducer/islpy#egg=islpy
-git+https://github.com/inducer/loopy#egg=loo.py
+git+https://github.com/inducer/loopy@revert_revert_purge_boostability#egg=loo.py
 git+https://github.com/inducer/boxtree#egg=boxtree
 git+https://github.com/inducer/meshmode#egg=meshmode
 git+https://github.com/inducer/sumpy#egg=sumpy