diff --git a/poetry.lock b/poetry.lock
index b2ed24a7..2663a54e 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 2.2.1 and should not be changed by hand.
 
 [[package]]
 name = "alabaster"
@@ -34,7 +34,7 @@ description = "Backport of asyncio.Runner, a context manager that controls event
 optional = false
 python-versions = "<3.11,>=3.8"
 groups = ["dev"]
-markers = "python_version < \"3.11\""
+markers = "python_version == \"3.10\""
 files = [
     {file = "backports_asyncio_runner-1.2.0-py3-none-any.whl", hash = "sha256:0da0a936a8aeb554eccb426dc55af3ba63bcdc69fa1a600b5bb305413a4477b5"},
     {file = "backports_asyncio_runner-1.2.0.tar.gz", hash = "sha256:a5aa7b2b7d8f8bfcaa2b57313f70792df84e32a2a746f585213373f900b42162"},
@@ -434,7 +434,7 @@ description = "Backport of PEP 654 (exception groups)"
 optional = false
 python-versions = ">=3.7"
 groups = ["dev"]
-markers = "python_version < \"3.11\""
+markers = "python_version == \"3.10\""
 files = [
     {file = "exceptiongroup-1.2.2-py3-none-any.whl", hash = "sha256:3111b9d131c238bec2f8f516e123e14ba243563fb135d3fe885990585aa7795b"},
     {file = "exceptiongroup-1.2.2.tar.gz", hash = "sha256:47c2edf7c6738fafb49fd34290706d1a1a2f4d1c6df275526b62cbb4aa5393cc"},
@@ -740,14 +740,14 @@ windows-terminal = ["colorama (>=0.4.6)"]
 
 [[package]]
 name = "pygobject"
-version = "3.50.0"
+version = "3.54.5"
 description = "Python bindings for GObject Introspection"
 optional = false
-python-versions = "<4.0,>=3.9"
+python-versions = ">=3.9"
 groups = ["dev"]
 markers = "python_version < \"4\""
 files = [
-    {file = "pygobject-3.50.0.tar.gz", hash = "sha256:4500ad3dbf331773d8dedf7212544c999a76fc96b63a91b3dcac1e5925a1d103"},
+    {file = "pygobject-3.54.5.tar.gz", hash = "sha256:b6656f6348f5245606cf15ea48c384c7f05156c75ead206c1b246c80a22fb585"},
 ]
 
 [package.dependencies]
@@ -1243,7 +1243,7 @@ files = [
     {file = "tomli-2.2.1-py3-none-any.whl", hash = "sha256:cb55c73c5f4408779d0cf3eef9f762b9c9f147a77de7b258bef0a5628adc85cc"},
     {file = "tomli-2.2.1.tar.gz", hash = "sha256:cd45e1dc79c835ce60f7404ec8119f2eb06d38b1deba146f07ced3bbc44505ff"},
 ]
-markers = {dev = "python_full_version <= \"3.11.0a6\"", docs = "python_version < \"3.11\""}
+markers = {dev = "python_full_version <= \"3.11.0a6\"", docs = "python_version == \"3.10\""}
 
 [[package]]
 name = "typing-extensions"
@@ -1279,4 +1279,4 @@ zstd = ["zstandard (>=0.18.0)"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10"
-content-hash = "9e7b7be14db5002cafa97e19ccda383db864b69afe3c6f3ceab5f42c694de8ce"
+content-hash = "97567514568354e05f24e1801728698926eaf66356c8def14d9758060632d998"
diff --git a/pyproject.toml b/pyproject.toml
index 0f2f4ba3..edb46bd1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ pytest = ">=7,<9"
 pytest-cov = ">=3,<8"
 pytest-asyncio = ">=0.19,<1.3"
 pycairo = "^1.21.0"
-PyGObject = {version = ">=3.50,<3.51", python = "<4"}
+PyGObject = {version = ">=3.50,<3.55", python = "<4"}
 Cython = ">=3,<3.3.0"
 setuptools = ">=65.4.1,<81.0.0"
 pytest-timeout = "^2.1.0"