diff --git a/Taskfile.yml b/Taskfile.yml
index e669add..d3c2726 100644
--- a/Taskfile.yml
+++ b/Taskfile.yml
@@ -496,7 +496,8 @@ tasks:
     cmds:
       - |
         poetry check \
-          --lock
+          --lock \
+          --strict
 
   # Make a temporary file and print the path passed to stdout.
   # Environment variable parameters:
diff --git a/poetry.lock b/poetry.lock
index 078143d..c009416 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.1.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.1.4 and should not be changed by hand.
 
 [[package]]
 name = "anyio"
@@ -1584,4 +1584,4 @@ cffi = ["cffi (>=1.11)"]
 [metadata]
 lock-version = "2.1"
 python-versions = "~3.9"
-content-hash = "0ceab0fd896e1536fd3ed67b86bd6f7315dde0ef5a18c4ebcd8924d644326b4c"
+content-hash = "2dba2097096d2830c709a5ac8f055c5949276ebce333ce88cceab2b3f10f60c6"
diff --git a/pyproject.toml b/pyproject.toml
index 377b589..8034dd0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ package-mode = false
 [tool.poetry.dependencies]
 python = "~3.9"
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]
 yamllint = "^1.37.1"
 codespell = "^2.4.1"