diff --git a/pyproject.toml b/pyproject.toml
index cb762a0..2f12320 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ license-files = ["LICENSE"]
 
 # This project is a Copier template, not an installable package.
 [build-system]
-requires = ["uv_build>=0.12.5,<0.13"]
+requires = ["uv_build>=0.12.6,<0.13"]
 build-backend = "uv_build"
 
 [tool.uv]
@@ -22,7 +22,7 @@ package = false
 dev = [
     "copier>=9.17.2",
     "pydantic>=2.13.4,<3",
-    "python-hcl2>=8.1.2,<9",
+    "python-hcl2>=8.1.3,<9",
     "pyyaml>=6.0.3,<7",
     "pytest>=9.1.1",
     "pytest-copie>=0.3.1",
diff --git a/uv.lock b/uv.lock
index 3f5d88e..e3d06db 100644
--- a/uv.lock
+++ b/uv.lock
@@ -505,15 +505,15 @@ wheels = [
 
 [[package]]
 name = "python-hcl2"
-version = "8.1.2"
+version = "8.1.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "lark" },
     { name = "regex" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/39/7b/6c9c973484a482f833a1b88ab69e078e05cc1f761af1839d5cbe7e7fad92/python_hcl2-8.1.2.tar.gz", hash = "sha256:ae809c7e6e39e8c3c3555e7b7f389082207929591fcba062c9f76afb1abe972d", size = 114685, upload-time = "2026-04-10T14:27:44.527Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/84/e0/c0bd414505d4c8a70d453d4c9d278b9d9dcf256a82f2c01be56cc0c3ee10/python_hcl2-8.1.3.tar.gz", hash = "sha256:bee7cc697144ac9113a0a29cee22a7cb6c0aa0ba043f2f19040c71d07820044d", size = 118375, upload-time = "2026-08-26T13:02:58.056Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/5d/c7/10c7832ec3050a191c756f4a591c9033fbfb8e10688e979efb5c4ca4265c/python_hcl2-8.1.2-py3-none-any.whl", hash = "sha256:ac3d16dc6501d4f24db348b3a634afdfb5c10a6715b27cd105a5b77071b84ee3", size = 98951, upload-time = "2026-04-10T14:27:43.529Z" },
+    { url = "https://files.pythonhosted.org/packages/d7/68/98c578b481b83ed1963c92fd148fbde425c1eabb37c417d370858352fb29/python_hcl2-8.1.3-py3-none-any.whl", hash = "sha256:1770376ec6a16f4991aba4fcb3bc6f21f018ff47856d5332f152773341eb2c78", size = 102329, upload-time = "2026-08-26T13:02:56.902Z" },
 ]
 
 [[package]]
@@ -547,7 +547,7 @@ dev = [
     { name = "pytest-copie", specifier = ">=0.3.1" },
     { name = "pytest-cov", specifier = ">=7.1.0" },
     { name = "pytest-xdist", specifier = ">=3.8.0" },
-    { name = "python-hcl2", specifier = ">=8.1.2,<9" },
+    { name = "python-hcl2", specifier = ">=8.1.3,<9" },
     { name = "pyyaml", specifier = ">=6.0.3,<7" },
     { name = "ruff", specifier = ">=0.16.4" },
 ]