diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8e4a03d..76974b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 - Switched from pyright to mypy for type checking.
 - Fixed broken links in the documentation.
 - Bumped default version of Tailwind CSS to 3.4.13.
+- Bumped minimum version of certifi to 2024.8.30. Removed the upper boundary of the version number.
 
 ## 2.19.0
 
diff --git a/pyproject.toml b/pyproject.toml
index 1937c6e..66e66ad 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,11 +24,7 @@ classifiers = [
 ]
 dynamic = ["version"]
 requires-python = ">=3.9"
-dependencies = [
-    "django>=4.2",
-    "certifi>=2023.7.22,<2025.0.0",
-    "django-typer>=2.1.2",
-]
+dependencies = ["django>=4.2", "certifi>=2024.8.30", "django-typer>=2.1.2"]
 
 [project.optional-dependencies]
 django-extensions = ["django-extensions>=3.2", "werkzeug>=3.0"]
@@ -75,6 +71,7 @@ exclude = '''
 
 # mypy
 [tool.mypy]
+python_version = "3.9"
 plugins = ["mypy_django_plugin.main"]
 
 [tool.django-stubs]
diff --git a/src/django_tailwind_cli/conf.py b/src/django_tailwind_cli/conf.py
index 5008a12..627a8ac 100644
--- a/src/django_tailwind_cli/conf.py
+++ b/src/django_tailwind_cli/conf.py
@@ -1,3 +1,5 @@
+from typing import Optional
+
 from django.conf import settings
 
 DEFAULT_VERSION = "3.4.13"
@@ -19,7 +21,7 @@ def get_tailwind_cli_automatic_download() -> bool:
     return getattr(settings, "TAILWIND_CLI_AUTOMATIC_DOWNLOAD", True)
 
 
-def get_tailwind_cli_src_css() -> None | str:
+def get_tailwind_cli_src_css() -> Optional[str]:
     """Get the source css file for the Tailwind CSS CLI."""
     return getattr(settings, "TAILWIND_CLI_SRC_CSS", None)
 
diff --git a/uv.lock b/uv.lock
index 2aab6fa..744a2d6 100644
--- a/uv.lock
+++ b/uv.lock
@@ -180,7 +180,7 @@ wheels = [
 
 [[package]]
 name = "django-tailwind-cli"
-version = "2.19.4.dev0+g88adcc5.d20241117"
+version = "2.19.4.dev3+ga5281c5.d20241117"
 source = { editable = "." }
 dependencies = [
     { name = "certifi" },
@@ -207,7 +207,7 @@ dev = [
 
 [package.metadata]
 requires-dist = [
-    { name = "certifi", specifier = ">=2023.7.22,<2025.0.0" },
+    { name = "certifi", specifier = ">=2024.8.30" },
     { name = "django", specifier = ">=4.2" },
     { name = "django-extensions", marker = "extra == 'django-extensions'", specifier = ">=3.2" },
     { name = "django-typer", specifier = ">=2.1.2" },