diff --git a/pixi.toml b/pixi.toml
index 2ba8bc33..5de70959 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -71,7 +71,7 @@ actionlint = ">=1.7.12,<2"
 blacken-docs = ">=1.20.0,<2"
 pytest = ">=9.0.3,<10"
 validate-pyproject = ">=0.25,<0.26"
-pyrefly = ">=0.63.0,<0.64"
+pyrefly = ">=0.63.1,<0.64"
 zizmor = ">=1.24.1,<1.25"
 # NOTE: don't add cupy, jax, pytorch, or sparse here,
 # as they slow down mypy and are not portable across target OSs