diff --git a/pylint.rc b/pylint.rc
index 0964cfb3e..159f0c281 100644
--- a/pylint.rc
+++ b/pylint.rc
@@ -55,7 +55,6 @@ disable=
     too-many-statements,
     undefined-loop-variable,
     unnecessary-comprehension,
-    unnecessary-lambda,
     unsubscriptable-object,
     unsupported-membership-test,
     unused-argument
diff --git a/tests/backoffice_pages/test_all.py b/tests/backoffice_pages/test_all.py
index 4c7a210f5..da5f26d1f 100644
--- a/tests/backoffice_pages/test_all.py
+++ b/tests/backoffice_pages/test_all.py
@@ -1699,7 +1699,7 @@ def test_backoffice_multi_actions_oldest_form(pub):
     assert 'Executing task "Mark as duplicates" on forms' in resp.text
     assert '>completed<' in resp.text
     oldest_formdata = None
-    for i, id in enumerate(sorted(ids, key=lambda x: int(x))):
+    for i, id in enumerate(sorted(ids, key=int)):
         if i == 0:
             oldest_formdata = formdef.data_class().get(id)
             assert formdef.data_class().get(id).status == 'wf-accepted'
@@ -1743,7 +1743,7 @@ def test_backoffice_multi_actions_using_session_user(pub):
     resp = resp.follow()
     assert 'Executing task &quot;Show user&quot; on forms' in resp.text
     assert '>completed<' in resp.text
-    for id in sorted(ids, key=lambda x: int(x)):
+    for id in sorted(ids, key=int):
         content = formdef.data_class().get(id).evolution[-1].parts[0].content
         assert 'session_user=admin' in content
 
diff --git a/tests/form_pages/test_block.py b/tests/form_pages/test_block.py
index 197e3853d..651898288 100644
--- a/tests/form_pages/test_block.py
+++ b/tests/form_pages/test_block.py
@@ -1265,7 +1265,7 @@ def test_block_with_dynamic_item_field(mock_urlopen, pub, blocks_feature):
             payload = [{'id': '2', 'text': 'bar'}]
         return io.StringIO(json.dumps({'data': payload}))
 
-    mock_urlopen.side_effect = lambda url: data_source(url)
+    mock_urlopen.side_effect = data_source
 
     FormDef.wipe()
     BlockDef.wipe()
diff --git a/wcs/forms/backoffice.py b/wcs/forms/backoffice.py
index 6ac1bd8d0..3e87db1c0 100644
--- a/wcs/forms/backoffice.py
+++ b/wcs/forms/backoffice.py
@@ -216,7 +216,7 @@ class FormDefUI:
             item_ids_dict = {x: True for x in item_ids}
             item_ids = [x for x in ordered_ids if x in item_ids_dict]
         else:
-            item_ids.sort(key=lambda x: int(x))
+            item_ids.sort(key=int)
             item_ids.reverse()
 
         total_count = len(item_ids)
diff --git a/wcs/qommon/form.py b/wcs/qommon/form.py
index 717ca276d..ea52a57f3 100644
--- a/wcs/qommon/form.py
+++ b/wcs/qommon/form.py
@@ -2642,7 +2642,7 @@ $(function() {
             pwd1 = None
 
         PASSWORD_FORMATS = {
-            'cleartext': lambda x: force_str(x),
+            'cleartext': force_str,
             'md5': lambda x: force_str(hashlib.md5(force_bytes(x)).hexdigest()),
             'sha1': lambda x: force_str(hashlib.sha1(force_bytes(x)).hexdigest()),
         }