diff --git a/requirements.txt b/requirements.txt
index fe12816d..8cd8c7ff 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-astropy==5.3
+astropy==5.3.1
 ipython==8.14.0
 matplotlib==3.7.0
 numpy==1.25.1