diff --git a/requirements.in b/requirements.in
index c1c6380..c7d49f1 100644
--- a/requirements.in
+++ b/requirements.in
@@ -1,4 +1,4 @@
-astropy==5.3.3
+astropy==5.3.4
 lightning==2.0.9.post0
 scikit-image==0.21.0
 scipy==1.11.3
diff --git a/requirements.txt b/requirements.txt
index 1bbcf36..7840a07 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ anyio==3.7.1
     #   starlette
 arrow==1.3.0
     # via lightning
-astropy==5.3.3
+astropy==5.3.4
     # via -r requirements.in
 async-timeout==4.0.3
     # via aiohttp