diff --git a/setup.cfg b/setup.cfg
index 27499805b..ef20371b7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -51,6 +51,7 @@ install_requires =
     wasabi>=0.9.1,<1.2.0
     srsly>=2.4.3,<3.0.0
     catalogue>=2.0.6,<2.1.0
+    weasel@git+https://github.com/explosion/weasel.git@9a3632862b47069d2f9033b773e814d4c4e09c83
     # Third-party dependencies
     typer>=0.3.0,<0.8.0
     pathy>=0.10.0