diff --git a/requirements.txt b/requirements.txt
index ab5e04a..d8ad116 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,5 +6,5 @@ fitsio
 lenstronomy
 matplotlib
 metadetect
-anacal==0.4.0
+anacal==0.5.1
 lsstdesc-wl-shear-sims==0.4.3