diff --git a/recipes/wsj.recipe b/recipes/wsj.recipe
index 076925551c..0d2584202d 100644
--- a/recipes/wsj.recipe
+++ b/recipes/wsj.recipe
@@ -143,7 +143,7 @@ class WSJ(BasicNewsRecipe):
         br.addheaders += [
             ('Accept-Encoding', 'gzip'),
             ('cache-control', 'no-cache'),
-            ('x-api-key', ('e''b''2''4''0''8''c''d''2''7''f''8''9''1''3''d''4''2''1''f''a''3''d''5''c''3''d''0''7''c''c''f''0''3''4''c''b''4''4''8')),
+            ('x-api-key', ('e''b''2''4''0''8''c''d''2''7''f''8''9''1''3''d''4''2''1''f''a''3''d''5''c''3''d''0''7''c''c''f''0''3''4''c''b''4''4''8')),  # noqa: ISC001
         ]
         return br
 
diff --git a/recipes/wsj_mag.recipe b/recipes/wsj_mag.recipe
index 8276f27e84..a0c4fcdf78 100644
--- a/recipes/wsj_mag.recipe
+++ b/recipes/wsj_mag.recipe
@@ -118,7 +118,7 @@ class WSJ(BasicNewsRecipe):
         br.addheaders += [
             ('Accept-Encoding', 'gzip'),
             ('cache-control', 'no-cache'),
-            ('x-api-key', ('e''b''2''4''0''8''c''d''2''7''f''8''9''1''3''d''4''2''1''f''a''3''d''5''c''3''d''0''7''c''c''f''0''3''4''c''b''4''4''8')),
+            ('x-api-key', ('e''b''2''4''0''8''c''d''2''7''f''8''9''1''3''d''4''2''1''f''a''3''d''5''c''3''d''0''7''c''c''f''0''3''4''c''b''4''4''8')),  # noqa: ISC001
         ]
         return br
 
diff --git a/recipes/wsj_news.recipe b/recipes/wsj_news.recipe
index d5a9d3e1e8..4607c41462 100644
--- a/recipes/wsj_news.recipe
+++ b/recipes/wsj_news.recipe
@@ -151,7 +151,7 @@ class WSJ(BasicNewsRecipe):
         br.addheaders += [
             ('Accept-Encoding', 'gzip'),
             ('cache-control', 'no-cache'),
-            ('x-api-key', ('e''b''2''4''0''8''c''d''2''7''f''8''9''1''3''d''4''2''1''f''a''3''d''5''c''3''d''0''7''c''c''f''0''3''4''c''b''4''4''8')),
+            ('x-api-key', ('e''b''2''4''0''8''c''d''2''7''f''8''9''1''3''d''4''2''1''f''a''3''d''5''c''3''d''0''7''c''c''f''0''3''4''c''b''4''4''8')),  # noqa: ISC001
         ]
         return br
 
diff --git a/ruff-strict-pep8.toml b/ruff-strict-pep8.toml
index 993676788c..3ea2b2b3a9 100644
--- a/ruff-strict-pep8.toml
+++ b/ruff-strict-pep8.toml
@@ -47,6 +47,7 @@ unfixable = ['PIE794', 'ISC001']
 [lint.per-file-ignores]
 "recipes/*" = ['UP']
 "manual/plugin_examples/*" = ['UP']
+"setup/changelog.py" = ['ISC001']
 "setup/commands.py" = ['RUF022']
 "src/calibre/*" = ['UP031']
 "src/calibre/customize/__init__.py" = ['RET501']
diff --git a/src/calibre/ebooks/conversion/utils.py b/src/calibre/ebooks/conversion/utils.py
index 34985bf9e9..21cad2fe81 100644
--- a/src/calibre/ebooks/conversion/utils.py
+++ b/src/calibre/ebooks/conversion/utils.py
@@ -58,7 +58,7 @@ class HeuristicProcessor:
             return '<h2>'+chap+'</h2>\n'
         else:
             delete_whitespace = re.compile(r'^\s*(?P<c>.*?)\s*$')
-            delete_quotes = re.compile(''''"''')
+            delete_quotes = re.compile(''''"''')  # noqa: RUF039
             txt_chap = delete_quotes.sub('', delete_whitespace.sub(r'\g<c>', html2text(chap)))
             txt_title = delete_quotes.sub('', delete_whitespace.sub(r'\g<c>', html2text(title)))
             self.html_preprocess_sections = self.html_preprocess_sections + 1