diff --git a/contrib/pyln-proto/pyproject.toml b/contrib/pyln-proto/pyproject.toml
index 977ca866899e..07ae8b6bab7c 100644
--- a/contrib/pyln-proto/pyproject.toml
+++ b/contrib/pyln-proto/pyproject.toml
@@ -15,7 +15,7 @@ python = "^3.8"
 base58 = "^2.1.1"
 bitstring = "^4.1.0"
 coincurve = "^20"
-cryptography = "^41"
+cryptography = "^42"
 PySocks = "^1"
 
 [tool.poetry.dev-dependencies]
diff --git a/poetry.lock b/poetry.lock
index 653042712d94..91111048bbe5 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -637,47 +637,56 @@ files = [
 
 [[package]]
 name = "cryptography"
-version = "41.0.7"
+version = "42.0.8"
 description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
 optional = false
 python-versions = ">=3.7"
 files = [
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-    {file = "cryptography-41.0.7-cp37-abi3-macosx_10_12_x86_64.whl", hash = "sha256:928258ba5d6f8ae644e764d0f996d61a8777559f72dfeb2eea7e2fe0ad6e782d"},
-    {file = "cryptography-41.0.7-cp37-abi3-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:5a1b41bc97f1ad230a41657d9155113c7521953869ae57ac39ac7f1bb471469a"},
-    {file = "cryptography-41.0.7-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:841df4caa01008bad253bce2a6f7b47f86dc9f08df4b433c404def869f590a15"},
-    {file = "cryptography-41.0.7-cp37-abi3-manylinux_2_28_aarch64.whl", hash = "sha256:5429ec739a29df2e29e15d082f1d9ad683701f0ec7709ca479b3ff2708dae65a"},
-    {file = "cryptography-41.0.7-cp37-abi3-manylinux_2_28_x86_64.whl", hash = "sha256:43f2552a2378b44869fe8827aa19e69512e3245a219104438692385b0ee119d1"},
-    {file = "cryptography-41.0.7-cp37-abi3-musllinux_1_1_aarch64.whl", hash = "sha256:af03b32695b24d85a75d40e1ba39ffe7db7ffcb099fe507b39fd41a565f1b157"},
-    {file = "cryptography-41.0.7-cp37-abi3-musllinux_1_1_x86_64.whl", hash = "sha256:49f0805fc0b2ac8d4882dd52f4a3b935b210935d500b6b805f321addc8177406"},
-    {file = "cryptography-41.0.7-cp37-abi3-win32.whl", hash = "sha256:f983596065a18a2183e7f79ab3fd4c475205b839e02cbc0efbbf9666c4b3083d"},
-    {file = "cryptography-41.0.7-cp37-abi3-win_amd64.whl", hash = "sha256:90452ba79b8788fa380dfb587cca692976ef4e757b194b093d845e8d99f612f2"},
-    {file = "cryptography-41.0.7-pp310-pypy310_pp73-macosx_10_12_x86_64.whl", hash = "sha256:079b85658ea2f59c4f43b70f8119a52414cdb7be34da5d019a77bf96d473b960"},
-    {file = "cryptography-41.0.7-pp310-pypy310_pp73-manylinux_2_28_aarch64.whl", hash = "sha256:b640981bf64a3e978a56167594a0e97db71c89a479da8e175d8bb5be5178c003"},
-    {file = "cryptography-41.0.7-pp310-pypy310_pp73-manylinux_2_28_x86_64.whl", hash = "sha256:e3114da6d7f95d2dee7d3f4eec16dacff819740bbab931aff8648cb13c5ff5e7"},
-    {file = "cryptography-41.0.7-pp310-pypy310_pp73-win_amd64.whl", hash = "sha256:d5ec85080cce7b0513cfd233914eb8b7bbd0633f1d1703aa28d1dd5a72f678ec"},
-    {file = "cryptography-41.0.7-pp38-pypy38_pp73-macosx_10_12_x86_64.whl", hash = "sha256:7a698cb1dac82c35fcf8fe3417a3aaba97de16a01ac914b89a0889d364d2f6be"},
-    {file = "cryptography-41.0.7-pp38-pypy38_pp73-manylinux_2_28_aarch64.whl", hash = "sha256:37a138589b12069efb424220bf78eac59ca68b95696fc622b6ccc1c0a197204a"},
-    {file = "cryptography-41.0.7-pp38-pypy38_pp73-manylinux_2_28_x86_64.whl", hash = "sha256:68a2dec79deebc5d26d617bfdf6e8aab065a4f34934b22d3b5010df3ba36612c"},
-    {file = "cryptography-41.0.7-pp38-pypy38_pp73-win_amd64.whl", hash = "sha256:09616eeaef406f99046553b8a40fbf8b1e70795a91885ba4c96a70793de5504a"},
-    {file = "cryptography-41.0.7-pp39-pypy39_pp73-macosx_10_12_x86_64.whl", hash = "sha256:48a0476626da912a44cc078f9893f292f0b3e4c739caf289268168d8f4702a39"},
-    {file = "cryptography-41.0.7-pp39-pypy39_pp73-manylinux_2_28_aarch64.whl", hash = "sha256:c7f3201ec47d5207841402594f1d7950879ef890c0c495052fa62f58283fde1a"},
-    {file = "cryptography-41.0.7-pp39-pypy39_pp73-manylinux_2_28_x86_64.whl", hash = "sha256:c5ca78485a255e03c32b513f8c2bc39fedb7f5c5f8535545bdc223a03b24f248"},
-    {file = "cryptography-41.0.7-pp39-pypy39_pp73-win_amd64.whl", hash = "sha256:d6c391c021ab1f7a82da5d8d0b3cee2f4b2c455ec86c8aebbc84837a631ff309"},
-    {file = "cryptography-41.0.7.tar.gz", hash = "sha256:13f93ce9bea8016c253b34afc6bd6a75993e5c40672ed5405a9c832f0d4a00bc"},
+    {file = "cryptography-42.0.8-cp37-abi3-macosx_10_12_universal2.whl", hash = "sha256:81d8a521705787afe7a18d5bfb47ea9d9cc068206270aad0b96a725022e18d2e"},
+    {file = "cryptography-42.0.8-cp37-abi3-macosx_10_12_x86_64.whl", hash = "sha256:961e61cefdcb06e0c6d7e3a1b22ebe8b996eb2bf50614e89384be54c48c6b63d"},
+    {file = "cryptography-42.0.8-cp37-abi3-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:e3ec3672626e1b9e55afd0df6d774ff0e953452886e06e0f1eb7eb0c832e8902"},
+    {file = "cryptography-42.0.8-cp37-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:e599b53fd95357d92304510fb7bda8523ed1f79ca98dce2f43c115950aa78801"},
+    {file = "cryptography-42.0.8-cp37-abi3-manylinux_2_28_aarch64.whl", hash = "sha256:5226d5d21ab681f432a9c1cf8b658c0cb02533eece706b155e5fbd8a0cdd3949"},
+    {file = "cryptography-42.0.8-cp37-abi3-manylinux_2_28_x86_64.whl", hash = "sha256:6b7c4f03ce01afd3b76cf69a5455caa9cfa3de8c8f493e0d3ab7d20611c8dae9"},
+    {file = "cryptography-42.0.8-cp37-abi3-musllinux_1_1_aarch64.whl", hash = "sha256:2346b911eb349ab547076f47f2e035fc8ff2c02380a7cbbf8d87114fa0f1c583"},
+    {file = "cryptography-42.0.8-cp37-abi3-musllinux_1_1_x86_64.whl", hash = "sha256:ad803773e9df0b92e0a817d22fd8a3675493f690b96130a5e24f1b8fabbea9c7"},
+    {file = "cryptography-42.0.8-cp37-abi3-musllinux_1_2_aarch64.whl", hash = "sha256:2f66d9cd9147ee495a8374a45ca445819f8929a3efcd2e3df6428e46c3cbb10b"},
+    {file = "cryptography-42.0.8-cp37-abi3-musllinux_1_2_x86_64.whl", hash = "sha256:d45b940883a03e19e944456a558b67a41160e367a719833c53de6911cabba2b7"},
+    {file = "cryptography-42.0.8-cp37-abi3-win32.whl", hash = "sha256:a0c5b2b0585b6af82d7e385f55a8bc568abff8923af147ee3c07bd8b42cda8b2"},
+    {file = "cryptography-42.0.8-cp37-abi3-win_amd64.whl", hash = "sha256:57080dee41209e556a9a4ce60d229244f7a66ef52750f813bfbe18959770cfba"},
+    {file = "cryptography-42.0.8-cp39-abi3-macosx_10_12_universal2.whl", hash = "sha256:dea567d1b0e8bc5764b9443858b673b734100c2871dc93163f58c46a97a83d28"},
+    {file = "cryptography-42.0.8-cp39-abi3-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:c4783183f7cb757b73b2ae9aed6599b96338eb957233c58ca8f49a49cc32fd5e"},
+    {file = "cryptography-42.0.8-cp39-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:a0608251135d0e03111152e41f0cc2392d1e74e35703960d4190b2e0f4ca9c70"},
+    {file = "cryptography-42.0.8-cp39-abi3-manylinux_2_28_aarch64.whl", hash = "sha256:dc0fdf6787f37b1c6b08e6dfc892d9d068b5bdb671198c72072828b80bd5fe4c"},
+    {file = "cryptography-42.0.8-cp39-abi3-manylinux_2_28_x86_64.whl", hash = "sha256:9c0c1716c8447ee7dbf08d6db2e5c41c688544c61074b54fc4564196f55c25a7"},
+    {file = "cryptography-42.0.8-cp39-abi3-musllinux_1_1_aarch64.whl", hash = "sha256:fff12c88a672ab9c9c1cf7b0c80e3ad9e2ebd9d828d955c126be4fd3e5578c9e"},
+    {file = "cryptography-42.0.8-cp39-abi3-musllinux_1_1_x86_64.whl", hash = "sha256:cafb92b2bc622cd1aa6a1dce4b93307792633f4c5fe1f46c6b97cf67073ec961"},
+    {file = "cryptography-42.0.8-cp39-abi3-musllinux_1_2_aarch64.whl", hash = "sha256:31f721658a29331f895a5a54e7e82075554ccfb8b163a18719d342f5ffe5ecb1"},
+    {file = "cryptography-42.0.8-cp39-abi3-musllinux_1_2_x86_64.whl", hash = "sha256:b297f90c5723d04bcc8265fc2a0f86d4ea2e0f7ab4b6994459548d3a6b992a14"},
+    {file = "cryptography-42.0.8-cp39-abi3-win32.whl", hash = "sha256:2f88d197e66c65be5e42cd72e5c18afbfae3f741742070e3019ac8f4ac57262c"},
+    {file = "cryptography-42.0.8-cp39-abi3-win_amd64.whl", hash = "sha256:fa76fbb7596cc5839320000cdd5d0955313696d9511debab7ee7278fc8b5c84a"},
+    {file = "cryptography-42.0.8-pp310-pypy310_pp73-macosx_10_12_x86_64.whl", hash = "sha256:ba4f0a211697362e89ad822e667d8d340b4d8d55fae72cdd619389fb5912eefe"},
+    {file = "cryptography-42.0.8-pp310-pypy310_pp73-manylinux_2_28_aarch64.whl", hash = "sha256:81884c4d096c272f00aeb1f11cf62ccd39763581645b0812e99a91505fa48e0c"},
+    {file = "cryptography-42.0.8-pp310-pypy310_pp73-manylinux_2_28_x86_64.whl", hash = "sha256:c9bb2ae11bfbab395bdd072985abde58ea9860ed84e59dbc0463a5d0159f5b71"},
+    {file = "cryptography-42.0.8-pp310-pypy310_pp73-win_amd64.whl", hash = "sha256:7016f837e15b0a1c119d27ecd89b3515f01f90a8615ed5e9427e30d9cdbfed3d"},
+    {file = "cryptography-42.0.8-pp39-pypy39_pp73-macosx_10_12_x86_64.whl", hash = "sha256:5a94eccb2a81a309806027e1670a358b99b8fe8bfe9f8d329f27d72c094dde8c"},
+    {file = "cryptography-42.0.8-pp39-pypy39_pp73-manylinux_2_28_aarch64.whl", hash = "sha256:dec9b018df185f08483f294cae6ccac29e7a6e0678996587363dc352dc65c842"},
+    {file = "cryptography-42.0.8-pp39-pypy39_pp73-manylinux_2_28_x86_64.whl", hash = "sha256:343728aac38decfdeecf55ecab3264b015be68fc2816ca800db649607aeee648"},
+    {file = "cryptography-42.0.8-pp39-pypy39_pp73-win_amd64.whl", hash = "sha256:013629ae70b40af70c9a7a5db40abe5d9054e6f4380e50ce769947b73bf3caad"},
+    {file = "cryptography-42.0.8.tar.gz", hash = "sha256:8d09d05439ce7baa8e9e95b07ec5b6c886f548deb7e0f69ef25f64b3bce842f2"},
 ]
 
 [package.dependencies]
-cffi = ">=1.12"
+cffi = {version = ">=1.12", markers = "platform_python_implementation != \"PyPy\""}
 
 [package.extras]
 docs = ["sphinx (>=5.3.0)", "sphinx-rtd-theme (>=1.1.1)"]
-docstest = ["pyenchant (>=1.6.11)", "sphinxcontrib-spelling (>=4.0.1)", "twine (>=1.12.0)"]
+docstest = ["pyenchant (>=1.6.11)", "readme-renderer", "sphinxcontrib-spelling (>=4.0.1)"]
 nox = ["nox"]
-pep8test = ["black", "check-sdist", "mypy", "ruff"]
+pep8test = ["check-sdist", "click", "mypy", "ruff"]
 sdist = ["build"]
 ssh = ["bcrypt (>=3.1.5)"]
-test = ["pretend", "pytest (>=6.2.0)", "pytest-benchmark", "pytest-cov", "pytest-xdist"]
+test = ["certifi", "pretend", "pytest (>=6.2.0)", "pytest-benchmark", "pytest-cov", "pytest-xdist"]
 test-randomorder = ["pytest-randomly"]
 
 [[package]]
@@ -1726,7 +1735,7 @@ develop = true
 base58 = "^2.1.1"
 bitstring = "^4.1.0"
 coincurve = "^20"
-cryptography = "^41"
+cryptography = "^42"
 PySocks = "^1"
 
 [package.source]
@@ -2384,4 +2393,4 @@ testing = ["coverage (>=5.0.3)", "zope.event", "zope.testing"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8.1,<4.0"
-content-hash = "81b82db3ba9c112833eb1482277d4c8f81c3f92aed6440b3024c07c02255f271"
+content-hash = "07f181d07f4d2b6898e8c6255c2087d3f7e313b0b69efc6f23596891b4af4faa"
diff --git a/pyproject.toml b/pyproject.toml
index 51033de7bd30..a46a57f7ff88 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ grpcio-tools = "^1"
 grpcio = "^1"
 # We want a specific version of protobuf to match CI's .github/scripts/setup.sh
 protobuf = "4.21.12"
-cryptography = "^41.0.2"
+cryptography = "^42"
 
 [tool.poetry.group.dev.dependencies]
 # Test dependencies and inherited dependencies belong here