diff --git a/requirements.txt b/requirements.txt
index 731a94b..de5cd4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-git+https://github.com/inducer/pytools.git
-git+https://github.com/inducer/pymbolic.git
-git+https://github.com/inducer/dagrt.git
+git+https://github.com/inducer/pytools.git#egg=pytools
+git+https://github.com/inducer/pymbolic.git#egg=pymbolic
+git+https://github.com/inducer/dagrt.git#egg=dagrt