diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 78539b9a..582e6b1c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -16,7 +16,7 @@ repos:
     rev: 1.19.1
     hooks:
       - id: blacken-docs
-        additional_dependencies: [black==22.3.0]
+        additional_dependencies: [black==24.10.0]
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v5.0.0
@@ -50,7 +50,7 @@ repos:
     rev: v3.19.0
     hooks:
       - id: pyupgrade
-        args: [--py3-plus]
+        args: [--py39-plus]
 
   - repo: https://github.com/pre-commit/mirrors-eslint
     rev: v9.15.0
diff --git a/src/pytest_html/basereport.py b/src/pytest_html/basereport.py
index f1bc9e6c..cfcc74b2 100644
--- a/src/pytest_html/basereport.py
+++ b/src/pytest_html/basereport.py
@@ -306,7 +306,7 @@ def _process_report(self, report, duration, processed_extras):
 
 def _format_duration(duration):
     if duration < 1:
-        return "{} ms".format(round(duration * 1000))
+        return f"{round(duration * 1000)} ms"
 
     hours = math.floor(duration / 3600)
     remaining_seconds = duration % 3600
diff --git a/src/pytest_html/extras.py b/src/pytest_html/extras.py
index abf7e4c8..f736a017 100644
--- a/src/pytest_html/extras.py
+++ b/src/pytest_html/extras.py
@@ -1,7 +1,6 @@
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
-from typing import Dict
 from typing import Optional
 
 FORMAT_HTML = "html"
@@ -18,7 +17,7 @@ def extra(
     name: Optional[str] = None,
     mime_type: Optional[str] = None,
     extension: Optional[str] = None,
-) -> Dict[str, Optional[str]]:
+) -> dict[str, Optional[str]]:
     return {
         "name": name,
         "format_type": format_type,
@@ -28,7 +27,7 @@ def extra(
     }
 
 
-def html(content: str) -> Dict[str, Optional[str]]:
+def html(content: str) -> dict[str, Optional[str]]:
     return extra(content, FORMAT_HTML)
 
 
@@ -37,31 +36,31 @@ def image(
     name: str = "Image",
     mime_type: str = "image/png",
     extension: str = "png",
-) -> Dict[str, Optional[str]]:
+) -> dict[str, Optional[str]]:
     return extra(content, FORMAT_IMAGE, name, mime_type, extension)
 
 
-def png(content: str, name: str = "Image") -> Dict[str, Optional[str]]:
+def png(content: str, name: str = "Image") -> dict[str, Optional[str]]:
     return image(content, name, mime_type="image/png", extension="png")
 
 
-def jpg(content: str, name: str = "Image") -> Dict[str, Optional[str]]:
+def jpg(content: str, name: str = "Image") -> dict[str, Optional[str]]:
     return image(content, name, mime_type="image/jpeg", extension="jpg")
 
 
-def svg(content: str, name: str = "Image") -> Dict[str, Optional[str]]:
+def svg(content: str, name: str = "Image") -> dict[str, Optional[str]]:
     return image(content, name, mime_type="image/svg+xml", extension="svg")
 
 
-def json(content: str, name: str = "JSON") -> Dict[str, Optional[str]]:
+def json(content: str, name: str = "JSON") -> dict[str, Optional[str]]:
     return extra(content, FORMAT_JSON, name, "application/json", "json")
 
 
-def text(content: str, name: str = "Text") -> Dict[str, Optional[str]]:
+def text(content: str, name: str = "Text") -> dict[str, Optional[str]]:
     return extra(content, FORMAT_TEXT, name, "text/plain", "txt")
 
 
-def url(content: str, name: str = "URL") -> Dict[str, Optional[str]]:
+def url(content: str, name: str = "URL") -> dict[str, Optional[str]]:
     return extra(content, FORMAT_URL, name)
 
 
@@ -70,9 +69,9 @@ def video(
     name: str = "Video",
     mime_type: str = "video/mp4",
     extension: str = "mp4",
-) -> Dict[str, Optional[str]]:
+) -> dict[str, Optional[str]]:
     return extra(content, FORMAT_VIDEO, name, mime_type, extension)
 
 
-def mp4(content: str, name: str = "Video") -> Dict[str, Optional[str]]:
+def mp4(content: str, name: str = "Video") -> dict[str, Optional[str]]:
     return video(content, name)
diff --git a/testing/legacy_test_pytest_html.py b/testing/legacy_test_pytest_html.py
index 1ae82e20..08ad208d 100644
--- a/testing/legacy_test_pytest_html.py
+++ b/testing/legacy_test_pytest_html.py
@@ -28,7 +28,7 @@ def read_html(path):
 
 def assert_results_by_outcome(html, test_outcome, test_outcome_number, label=None):
     # Asserts if the test number of this outcome in the summary is correct
-    regex_summary = r"(\d)+ {}".format(label or test_outcome)
+    regex_summary = rf"(\d)+ {label or test_outcome}"
     assert int(re.search(regex_summary, html).group(1)) == test_outcome_number
 
     # Asserts if the generated checkbox of this outcome is correct