diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 114b78f5..f2d06e24 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -36,10 +36,3 @@ repos:
           - types-aiobotocore[essential]
           - boto3-stubs[essential]
         exclude: ^(diracx-client/src/diracx/client/|diracx-[a-z]+/tests/|diracx-testing/|build)
-
-  - repo: https://github.com/asottile/pyupgrade
-    rev: v3.17.0
-    hooks:
-    -   id: pyupgrade
-        args: ["--py311-plus"]
-        exclude: ^(diracx-client/src/diracx/client/|diracx-cli/tests/|diracx-cli/src/diracx/cli/)
diff --git a/diracx-api/tests/test_jobs.py b/diracx-api/tests/test_jobs.py
index fdbdd52c..cf47595c 100644
--- a/diracx-api/tests/test_jobs.py
+++ b/diracx-api/tests/test_jobs.py
@@ -14,12 +14,12 @@ async def test_upload_download_sandbox(tmp_path, with_cli_login, caplog):
     input_files = []
 
     input_file = input_directory / "input.dat"
-    input_file.write_bytes(secrets.token_bytes(1024))
+    input_file.write_bytes(secrets.token_bytes(512))
     input_files.append(input_file)
 
     input_file = input_directory / "a" / "b" / "c" / "nested.dat"
     input_file.parent.mkdir(parents=True)
-    input_file.write_bytes(secrets.token_bytes(1024))
+    input_file.write_bytes(secrets.token_bytes(512))
     input_files.append(input_file)
 
     # Upload the sandbox
diff --git a/diracx-routers/tests/jobs/test_sandboxes.py b/diracx-routers/tests/jobs/test_sandboxes.py
index fb7387a4..2422d900 100644
--- a/diracx-routers/tests/jobs/test_sandboxes.py
+++ b/diracx-routers/tests/jobs/test_sandboxes.py
@@ -34,7 +34,7 @@ def normal_user_client(client_factory):
 def test_upload_then_download(
     normal_user_client: TestClient, test_auth_settings: AuthSettings
 ):
-    data = secrets.token_bytes(1024)
+    data = secrets.token_bytes(512)
     checksum = hashlib.sha256(data).hexdigest()
 
     # Initiate the upload
@@ -85,7 +85,7 @@ def test_upload_then_download(
 
 
 def test_upload_oversized(normal_user_client: TestClient):
-    data = secrets.token_bytes(1024)
+    data = secrets.token_bytes(512)
     checksum = hashlib.sha256(data).hexdigest()
 
     # Initiate the upload
@@ -125,7 +125,7 @@ def test_upload_oversized(normal_user_client: TestClient):
 
 
 def test_assign_then_unassign_sandboxes_to_jobs(normal_user_client: TestClient):
-    data = secrets.token_bytes(1024)
+    data = secrets.token_bytes(512)
     checksum = hashlib.sha256(data).hexdigest()
 
     # Upload Sandbox: