diff --git a/dev/requirements.txt b/dev/requirements.txt
index 5c0e910d..41ea7ae7 100644
--- a/dev/requirements.txt
+++ b/dev/requirements.txt
@@ -1,18 +1,18 @@
-fsspec[git,hdfs,dask,http,sftp,smb]==2025.7.0
+fsspec[git,hdfs,dask,http,sftp,smb]==2025.9.0
 
 # these dependencies define their own filesystems
-adlfs==2024.12.0
+adlfs==2025.8.0
 boxfs==0.3.0
 dropboxdrivefs==1.4.1
-gcsfs==2025.7.0
-s3fs==2025.7.0
+gcsfs==2025.9.0
+s3fs==2025.9.0
 ocifs==1.3.2
 webdav4[fsspec]==0.10.0
 # gfrivefs @ git+https://github.com/fsspec/gdrivefs@master broken ...
 morefs[asynclocalfs]==0.2.2
-dvc==3.62.0
+dvc==3.63.0
 huggingface_hub==0.34.4
-lakefs-spec==0.11.3
+lakefs-spec==0.12.0
 ossfs==2025.5.0
 fsspec-xrootd==0.5.1
 wandbfs==0.0.2
diff --git a/upath/_flavour_sources.py b/upath/_flavour_sources.py
index cb59b87f..8244d743 100644
--- a/upath/_flavour_sources.py
+++ b/upath/_flavour_sources.py
@@ -90,7 +90,7 @@ def __init_subclass__(cls: Any, **kwargs):
 
 class AbstractFileSystemFlavour(FileSystemFlavourBase):
     __orig_class__ = 'fsspec.spec.AbstractFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol: str | tuple[str, ...] = 'abstract'
     root_marker: Literal['', '/'] = ''
     sep: Literal['/'] = '/'
@@ -139,7 +139,7 @@ def _parent(cls, path):
 
 class AsyncFileSystemWrapperFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.asyn_wrapper.AsyncFileSystemWrapper'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('asyncwrapper', 'async_wrapper')
     root_marker = ''
     sep = '/'
@@ -211,7 +211,7 @@ def _parent(cls, path):
 
 class AzureBlobFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'adlfs.spec.AzureBlobFileSystem'
-    __orig_version__ = '2024.12.0'
+    __orig_version__ = '2025.8.0'
     protocol = ('abfs', 'az', 'abfss')
     root_marker = ''
     sep = '/'
@@ -284,7 +284,7 @@ def _get_kwargs_from_urls(urlpath):
 
 class AzureDatalakeFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'adlfs.gen1.AzureDatalakeFileSystem'
-    __orig_version__ = '2024.12.0'
+    __orig_version__ = '2025.8.0'
     protocol = ('adl',)
     root_marker = ''
     sep = '/'
@@ -323,7 +323,7 @@ def _strip_protocol(cls, path) -> str:
 
 class DaskWorkerFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.dask.DaskWorkerFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('dask',)
     root_marker = ''
     sep = '/'
@@ -339,7 +339,7 @@ def _get_kwargs_from_urls(path):
 
 class DataFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.data.DataFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('data',)
     root_marker = ''
     sep = '/'
@@ -347,7 +347,7 @@ class DataFileSystemFlavour(AbstractFileSystemFlavour):
 
 class DatabricksFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.dbfs.DatabricksFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('dbfs',)
     root_marker = ''
     sep = '/'
@@ -380,7 +380,7 @@ class DropboxDriveFileSystemFlavour(AbstractFileSystemFlavour):
 
 class FTPFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.ftp.FTPFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('ftp',)
     root_marker = '/'
     sep = '/'
@@ -399,7 +399,7 @@ def _get_kwargs_from_urls(urlpath):
 
 class GCSFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'gcsfs.core.GCSFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('gs', 'gcs')
     root_marker = ''
     sep = '/'
@@ -476,7 +476,7 @@ def _split_path(cls, path, version_aware=False):
 
 class GistFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.gist.GistFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('gist',)
     root_marker = ''
     sep = '/'
@@ -524,7 +524,7 @@ def _get_kwargs_from_urls(path):
 
 class GitFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.git.GitFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('git',)
     root_marker = ''
     sep = '/'
@@ -551,7 +551,7 @@ def _get_kwargs_from_urls(path):
 
 class GithubFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.github.GithubFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('github',)
     root_marker = ''
     sep = '/'
@@ -576,7 +576,7 @@ def _get_kwargs_from_urls(path):
 
 class HTTPFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.http.HTTPFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('http', 'https')
     root_marker = ''
     sep = '/'
@@ -597,7 +597,7 @@ def _parent(cls, path):
 
 class HadoopFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.arrow.HadoopFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('hdfs', 'arrow_hdfs')
     root_marker = '/'
     sep = '/'
@@ -638,7 +638,7 @@ class HfFileSystemFlavour(AbstractFileSystemFlavour):
 
 class JupyterFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.jupyter.JupyterFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('jupyter', 'jlab')
     root_marker = ''
     sep = '/'
@@ -646,7 +646,7 @@ class JupyterFileSystemFlavour(AbstractFileSystemFlavour):
 
 class LakeFSFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'lakefs_spec.spec.LakeFSFileSystem'
-    __orig_version__ = '0.11.3'
+    __orig_version__ = '0.12.0'
     protocol = ('lakefs',)
     root_marker = ''
     sep = '/'
@@ -664,7 +664,7 @@ def _strip_protocol(cls, path):
 
 class LibArchiveFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.libarchive.LibArchiveFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('libarchive',)
     root_marker = ''
     sep = '/'
@@ -677,7 +677,7 @@ def _strip_protocol(cls, path):
 
 class LocalFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.local.LocalFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('file', 'local')
     root_marker = '/'
     sep = '/'
@@ -755,7 +755,7 @@ def _strip_protocol(cls, path):
 
 class MemoryFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.memory.MemoryFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('memory',)
     root_marker = '/'
     sep = '/'
@@ -853,7 +853,7 @@ class OverlayFileSystemFlavour(AbstractFileSystemFlavour):
 
 class ReferenceFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.reference.ReferenceFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('reference',)
     root_marker = ''
     sep = '/'
@@ -861,7 +861,7 @@ class ReferenceFileSystemFlavour(AbstractFileSystemFlavour):
 
 class S3FileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 's3fs.core.S3FileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('s3', 's3a')
     root_marker = ''
     sep = '/'
@@ -889,7 +889,7 @@ def _get_kwargs_from_urls(urlpath):
 
 class SFTPFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.sftp.SFTPFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('sftp', 'ssh')
     root_marker = ''
     sep = '/'
@@ -908,7 +908,7 @@ def _get_kwargs_from_urls(urlpath):
 
 class SMBFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.smb.SMBFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('smb',)
     root_marker = ''
     sep = '/'
@@ -928,7 +928,7 @@ def _get_kwargs_from_urls(path):
 
 class TarFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.tar.TarFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('tar',)
     root_marker = ''
     sep = '/'
@@ -944,7 +944,7 @@ class WandbFSFlavour(AbstractFileSystemFlavour):
 
 class WebHDFSFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.webhdfs.WebHDFS'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('webhdfs', 'webHDFS')
     root_marker = ''
     sep = '/'
@@ -1005,7 +1005,7 @@ def _get_kwargs_from_urls(u: str) -> dict[Any, Any]:
 
 class ZipFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'fsspec.implementations.zip.ZipFileSystem'
-    __orig_version__ = '2025.7.0'
+    __orig_version__ = '2025.9.0'
     protocol = ('zip',)
     root_marker = ''
     sep = '/'
@@ -1018,7 +1018,7 @@ def _strip_protocol(cls, path):
 
 class _DVCFileSystemFlavour(AbstractFileSystemFlavour):
     __orig_class__ = 'dvc.fs.dvc._DVCFileSystem'
-    __orig_version__ = '3.62.0'
+    __orig_version__ = '3.63.0'
     protocol = ('dvc',)
     root_marker = '/'
     sep = '/'