diff --git a/amber/LICENSE-binary-python b/amber/LICENSE-binary-python
index 0a74db88ff9..b75ad6ee335 100644
--- a/amber/LICENSE-binary-python
+++ b/amber/LICENSE-binary-python
@@ -311,7 +311,7 @@ Python packages:
   - pandas==2.2.3
   - pg8000==1.31.5
   - psutil==7.2.2
-  - s3fs==2025.9.0
+  - s3fs==2026.6.0
   - scikit-image==0.25.2
   - scikit-learn==1.7.2
   - scipy==1.18.0
diff --git a/amber/requirements.txt b/amber/requirements.txt
index 0be43d7cd51..b42809cae6b 100644
--- a/amber/requirements.txt
+++ b/amber/requirements.txt
@@ -34,7 +34,7 @@ psutil==7.2.2
 tzlocal==2.1
 # Not imported directly: s3fs (with aiobotocore) backs pyiceberg's
 # fsspec-based S3 FileIO (#4272).
-s3fs==2025.9.0
+s3fs==2026.6.0
 aiobotocore==2.26.0
 botocore==1.41.5
 pyiceberg==0.11.1