diff --git a/pyproject.toml b/pyproject.toml
index b089b7c..b26ab47 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ authors = [
 ]
 dependencies = [
     "biopython>=1.83",
-    "click>=8.4.1",
+    "click>=8.4.2",
     "scipy>=1.1",
     "numpy==2.4.6",
     "aligntools==1.2.2",
diff --git a/uv.lock b/uv.lock
index 3a580b2..f32b380 100644
--- a/uv.lock
+++ b/uv.lock
@@ -97,7 +97,7 @@ test = [
 requires-dist = [
     { name = "aligntools", specifier = "==1.2.2" },
     { name = "biopython", specifier = ">=1.83" },
-    { name = "click", specifier = ">=8.4.1" },
+    { name = "click", specifier = ">=8.4.2" },
     { name = "flake8", marker = "extra == 'dev'" },
     { name = "mypy", marker = "extra == 'dev'" },
     { name = "numpy", specifier = "==2.4.6" },
@@ -168,14 +168,14 @@ wheels = [
 
 [[package]]
 name = "click"
-version = "8.4.1"
+version = "8.4.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/9b/98/518d8e5081007684232226f475082b30087d0f585e8457db087298259f49/click-8.4.1.tar.gz", hash = "sha256:918b5633eddf6b41c32d4f454bf0de810065c74e3f7dbf8ee5452f8be88d3e96", size = 353007, upload-time = "2026-05-22T04:08:37.769Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/76/d4/81420972a676e8ffea40450d8c8c92943e7218a78fe9b64359836cc9876b/click-8.4.2.tar.gz", hash = "sha256:9a6cea6e60b17ebe0a44c5cc636d94f09bd66142c1cd7d8b4cd731c4917a15f6", size = 338000, upload-time = "2026-06-24T17:45:15.148Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/c7/0d/67e5b4109ea4a837e80daa87c2c696711955e40449a97e8926672534def2/click-8.4.1-py3-none-any.whl", hash = "sha256:482be17c6991b8c19c5429a1e995d9b0efdbb63172824c41f99965dc0ade8ec2", size = 116639, upload-time = "2026-05-22T04:08:35.26Z" },
+    { url = "https://files.pythonhosted.org/packages/fb/e2/79c688af8b210d232694e31e59da9f6ec747bae31c3f5946e4e9b98860d5/click-8.4.2-py3-none-any.whl", hash = "sha256:e6f9f66136c816745b9d65817da91d61d957fb16e02e4dcd0552553c5a197b76", size = 119243, upload-time = "2026-06-24T17:45:13.73Z" },
 ]
 
 [[package]]