diff --git a/requirements.txt b/requirements.txt
index bce20cd5..c3498f21 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ matplotlib==3.5.2
 numpy==1.23.0
 photutils==1.5.0
 poppy>=1.0.0
-pysiaf==0.17.0
+pysiaf==0.18.0
 scipy==1.8.1
 synphot==1.1.1
 astroquery==0.4.6