diff --git a/docs/highlighter.py b/docs/highlighter.py
index 5ece78a4..bb14693c 100644
--- a/docs/highlighter.py
+++ b/docs/highlighter.py
@@ -1,5 +1,5 @@
+from IPython.core.display import HTML
 from IPython.core.magic import register_line_magic
-from IPython.display import HTML
 from pygments import highlight
 from pygments.formatters import HtmlFormatter
 from pygments.lexers import get_lexer_for_filename
@@ -17,7 +17,7 @@
 
 
 @register_line_magic
-def highlight_file(filename):
+def highlight_file(filename: str) -> HTML:
     lexer = get_lexer_for_filename(filename)
 
     linenos = "inline"
diff --git a/pyproject.toml b/pyproject.toml
index 5ef74ddf..7686574d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -174,7 +174,6 @@ ignore = [
     "UP015",   # Unnecessary open mode parameters
     "UP032",   # Use f-string instead of `format` call
     "UP034",   # Avoid extraneous parentheses
-    #"UP037",   # Remove quotes from type annotation
 ]
 
 [tool.ruff.format]
@@ -200,11 +199,6 @@ max-returns = 11
     "A001", # Variable `copyright` is shadowing a Python builtin
 ]
 
-"docs/highlighter.py" = [
-    "ANN001",  # Missing type annotation for function argument
-    "ANN201",  # Missing return type annotation for public function
-]
-
 "nornir/core/configuration.py" = [
     "A002",    # Argument `format` / `help` is shadowing a Python builtin
 ]