diff --git a/requirements.txt b/requirements.txt
index dfe8042..1de53cf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-git+https://github.com/inducer/islpy.git@no-auto-self-downcast#egg=islpy
+git+https://github.com/inducer/islpy.git#egg=islpy