diff --git a/ci/requirements/py3.10-all-free.yml b/ci/requirements/py3.10-all-free.yml
index 47da7b4b..0e3e21ed 100644
--- a/ci/requirements/py3.10-all-free.yml
+++ b/ci/requirements/py3.10-all-free.yml
@@ -19,7 +19,7 @@ dependencies:
 # EXT.UTIL:
   - boto3
   - gsw
-  - s3fs
+  - s3fs > 2023.12.12
   - tqdm
   - zarr
 
diff --git a/ci/requirements/py3.10-all-pinned.yml b/ci/requirements/py3.10-all-pinned.yml
index f20410d2..a9e3140e 100644
--- a/ci/requirements/py3.10-all-pinned.yml
+++ b/ci/requirements/py3.10-all-pinned.yml
@@ -19,7 +19,7 @@ dependencies:
 # EXT.UTIL:
   - boto3 = 1.35.0
   - gsw = 3.6.19
-  - s3fs = 0.4.2
+  - s3fs > 2023.12.12
   - tqdm = 4.66.5
   - zarr = 2.18.2