diff --git a/poetry.lock b/poetry.lock
index 52075ed9..4bcb5c1e 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.2.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.3.4 and should not be changed by hand.
 
 [[package]]
 name = "accessible-pygments"
@@ -57,7 +57,7 @@ version = "25.4.0"
 description = "Classes Without Boilerplate"
 optional = false
 python-versions = ">=3.9"
-groups = ["main", "dev"]
+groups = ["dev"]
 files = [
     {file = "attrs-25.4.0-py3-none-any.whl", hash = "sha256:adcf7e2a1fb3b36ac48d97835bb6d8ade15b8dcce26aba8bf1d14847b57a3373"},
     {file = "attrs-25.4.0.tar.gz", hash = "sha256:16d5969b87f0859ef33a48b35d55ac1be6e42ae49d5e853b597db70c35c57e11"},
@@ -538,7 +538,7 @@ accessible-pygments = ">=0.0.5"
 beautifulsoup4 = "*"
 pygments = ">=2.7"
 sphinx = ">=7.0,<10.0"
-sphinx-basic-ng = ">=1.0.0.beta2"
+sphinx-basic-ng = ">=1.0.0b2"
 
 [[package]]
 name = "h11"
@@ -601,39 +601,38 @@ zstd = ["zstandard (>=0.18.0)"]
 
 [[package]]
 name = "hypothesis"
-version = "6.137.2"
-description = "A library for property-based testing"
+version = "6.151.14"
+description = "The property-based testing library for Python"
 optional = true
-python-versions = ">=3.9"
+python-versions = ">=3.10"
 groups = ["main"]
 markers = "extra == \"check-laws\""
 files = [
-    {file = "hypothesis-6.137.2-py3-none-any.whl", hash = "sha256:7258a288e9a4d1bac34a9403a6039056113b8b125e3974d88d7773cdb052164f"},
-    {file = "hypothesis-6.137.2.tar.gz", hash = "sha256:e98bcf06bc0f8497e91f255b2549263283be266e8f299e9b2effd7dc075978f6"},
+    {file = "hypothesis-6.151.14-py3-none-any.whl", hash = "sha256:0c27a1e1092752d8c424b7f1caeb6ecfbed9af87914f510b59c1be69945e85a5"},
+    {file = "hypothesis-6.151.14.tar.gz", hash = "sha256:14fffdfdb50e816cf114f9946aebbf533d7e0920c07ddc1531889f0a22ffaa20"},
 ]
 
 [package.dependencies]
-attrs = ">=22.2.0"
 exceptiongroup = {version = ">=1.0.0", markers = "python_version < \"3.11\""}
 sortedcontainers = ">=2.1.0,<3.0.0"
 
 [package.extras]
-all = ["black (>=19.10b0)", "click (>=7.0)", "crosshair-tool (>=0.0.93)", "django (>=4.2)", "dpcontracts (>=0.4)", "hypothesis-crosshair (>=0.0.24)", "lark (>=0.10.1)", "libcst (>=0.3.16)", "numpy (>=1.19.3)", "pandas (>=1.1)", "pytest (>=4.6)", "python-dateutil (>=1.4)", "pytz (>=2014.1)", "redis (>=3.0.0)", "rich (>=9.0.0)", "tzdata (>=2025.2) ; sys_platform == \"win32\" or sys_platform == \"emscripten\"", "watchdog (>=4.0.0)"]
-cli = ["black (>=19.10b0)", "click (>=7.0)", "rich (>=9.0.0)"]
+all = ["black (>=20.8b0)", "click (>=7.0)", "crosshair-tool (>=0.0.102)", "django (>=4.2)", "dpcontracts (>=0.4)", "hypothesis-crosshair (>=0.0.27)", "lark (>=0.10.1)", "libcst (>=0.3.16)", "numpy (>=1.21.6)", "pandas (>=1.1)", "pytest (>=4.6)", "python-dateutil (>=1.4)", "pytz (>=2014.1)", "redis (>=3.0.0)", "rich (>=9.0.0)", "tzdata (>=2026.1) ; sys_platform == \"win32\" or sys_platform == \"emscripten\"", "watchdog (>=4.0.0)"]
+cli = ["black (>=20.8b0)", "click (>=7.0)", "rich (>=9.0.0)"]
 codemods = ["libcst (>=0.3.16)"]
-crosshair = ["crosshair-tool (>=0.0.93)", "hypothesis-crosshair (>=0.0.24)"]
+crosshair = ["crosshair-tool (>=0.0.102)", "hypothesis-crosshair (>=0.0.27)"]
 dateutil = ["python-dateutil (>=1.4)"]
 django = ["django (>=4.2)"]
 dpcontracts = ["dpcontracts (>=0.4)"]
-ghostwriter = ["black (>=19.10b0)"]
+ghostwriter = ["black (>=20.8b0)"]
 lark = ["lark (>=0.10.1)"]
-numpy = ["numpy (>=1.19.3)"]
+numpy = ["numpy (>=1.21.6)"]
 pandas = ["pandas (>=1.1)"]
 pytest = ["pytest (>=4.6)"]
 pytz = ["pytz (>=2014.1)"]
 redis = ["redis (>=3.0.0)"]
 watchdog = ["watchdog (>=4.0.0)"]
-zoneinfo = ["tzdata (>=2025.2) ; sys_platform == \"win32\" or sys_platform == \"emscripten\""]
+zoneinfo = ["tzdata (>=2026.1) ; sys_platform == \"win32\" or sys_platform == \"emscripten\""]
 
 [[package]]
 name = "idna"
@@ -707,7 +706,7 @@ files = [
 
 [package.dependencies]
 attrs = ">=22.2.0"
-jsonschema-specifications = ">=2023.03.6"
+jsonschema-specifications = ">=2023.3.6"
 referencing = ">=0.28.4"
 rpds-py = ">=0.7.1"
 
@@ -1901,6 +1900,7 @@ files = [
     {file = "tomli-2.4.1-py3-none-any.whl", hash = "sha256:0d85819802132122da43cb86656f8d1f8c6587d54ae7dcaf30e90533028b49fe"},
     {file = "tomli-2.4.1.tar.gz", hash = "sha256:7c7e1a961a0b2f2472c1ac5b69affa0ae1132c39adcb67aba98568702b9cc23f"},
 ]
+markers = {main = "(extra == \"check-laws\" or extra == \"compatible-mypy\") and python_version == \"3.10\"", dev = "python_full_version <= \"3.11.0a6\""}
 
 [[package]]
 name = "tomlkit"
@@ -1989,4 +1989,4 @@ compatible-mypy = ["mypy"]
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.10"
-content-hash = "11f6508d53875fe76f2c2135988473e43a6328c4bd8984aa7f36c581eaf229d3"
+content-hash = "d59e9bbc8635745ad2a9e27df13c5a4df12c1b46031d1fdff0402a4fe41f4625"
diff --git a/pyproject.toml b/pyproject.toml
index a76c61eb..09e43f9e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ classifiers = [
 dependencies.python = "^3.10"
 dependencies.typing-extensions = ">=4.0,<5.0"
 dependencies.pytest = { version = ">=8,<10", optional = true }
-dependencies.hypothesis = { version = "^6.136", optional = true }
+dependencies.hypothesis = { version = "^6.151", optional = true }
 dependencies.mypy = { version = ">=1.12,<1.18", optional = true }
 extras.compatible-mypy = [ "mypy" ]
 extras.check-laws = [ "pytest", "hypothesis" ]
diff --git a/returns/contrib/hypothesis/laws.py b/returns/contrib/hypothesis/laws.py
index 48c9ea49..53899ba0 100644
--- a/returns/contrib/hypothesis/laws.py
+++ b/returns/contrib/hypothesis/laws.py
@@ -207,7 +207,7 @@ def clean_plugin_context() -> Iterator[None]:
     """
     saved_stategies = {}
     for strategy_key, strategy in types._global_type_lookup.items():  # noqa: SLF001
-        if isinstance(  # type: ignore[redundant-expr]
+        if isinstance(  # type: ignore[redundant-expr, unused-ignore]
             strategy_key,
             type,
         ) and strategy_key.__module__.startswith('returns.'):
diff --git a/tests/test_contrib/test_hypothesis/test_type_resolution.py b/tests/test_contrib/test_hypothesis/test_type_resolution.py
index 49115b2a..4ec629ee 100644
--- a/tests/test_contrib/test_hypothesis/test_type_resolution.py
+++ b/tests/test_contrib/test_hypothesis/test_type_resolution.py
@@ -207,7 +207,7 @@ def test_types_to_strategies_default() -> None:  # noqa: WPS210
     ]
     assert (
         _strategy_string(result[callable_type], Callable[[int, str], bool])
-        == 'functions(like=lambda *args, **kwargs: <unknown>,'
+        == 'functions(like=lambda *args, **kwargs: None,'
         ' returns=booleans(), pure=True)'
     )
     assert (