diff --git a/requirements.txt b/requirements.txt
index 904807e..e195c64 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 Flask==2.3.2
-astropy==5.1.0
+astropy==5.3.3
 boto3==1.21.5
 opensearch-dsl==1.0.0
 opensearch-py==1.0.0