diff --git a/requirements.txt b/requirements.txt
index 97c2024764715d0a715520800e2e1dd467183479..2e0245df87f42d3d495d1049546946df860513a6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ git+https://github.com/inducer/pytools.git
 git+https://github.com/inducer/islpy.git
 git+https://github.com/inducer/cgen.git
 git+https://github.com/inducer/pyopencl.git
-git+https://github.com/inducer/pymbolic.git
+git+https://gitlab.tiker.net/inducer/pymbolic.git@deprecate-stringifier-constant-mapper
 git+https://github.com/inducer/genpy.git
 git+https://github.com/inducer/codepy.git