diff --git a/requirements.txt b/requirements.txt
index 212573c0d..cf9406a19 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,6 +19,7 @@ git+https://github.com/mpi4py/mpi4py#egg=mpi4py
 --editable git+https://github.com/inducer/dagrt.git#egg=dagrt
 --editable git+https://github.com/inducer/leap.git#egg=leap
 --editable git+https://github.com/inducer/modepy.git#egg=modepy
+--editable git+https://github.com/inducer/pytools@444c4b6#egg=pytools
 --editable git+https://github.com/illinois-ceesd/arraycontext.git@production-pilot#egg=arraycontext
 --editable git+https://github.com/illinois-ceesd/meshmode.git@production-pilot#egg=meshmode
 --editable git+https://github.com/illinois-ceesd/grudge.git@production-pilot#egg=grudge