diff --git a/dev/requirements.txt b/dev/requirements.txt
index d9f3683..774cbce 100644
--- a/dev/requirements.txt
+++ b/dev/requirements.txt
@@ -5,7 +5,7 @@ adlfs==2024.12.0
 boxfs==0.3.0
 dropboxdrivefs==1.4.1
 gcsfs==2025.3.2
-s3fs==2025.3.2
+s3fs==2025.5.1
 ocifs==1.3.2
 webdav4[fsspec]==0.10.0
 # gfrivefs @ git+https://github.com/fsspec/gdrivefs@master broken ...