diff --git a/requirements.txt b/requirements.txt
index 5ba89e7a..cd5cbd8e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-astropy==5.3
+astropy==5.3.1
 ipython==8.14.0
 matplotlib==3.7.2
 numpy==1.25.2