diff --git a/requirements.txt b/requirements.txt
index 05dd931..8fdae7b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 numpy == 1.23.5
 scipy >= 1.5.4
-astropy == 5.0.4
+astropy == 5.3.3
 photutils == 1.1.0
 Bottleneck >= 1.3.4
 matplotlib >= 3.3.1