diff --git a/poetry.lock b/poetry.lock
index ad77a4ea..1a1c80f1 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -2229,14 +2229,14 @@ files = [
 
 [[package]]
 name = "trio"
-version = "0.33.0"
+version = "0.34.0"
 description = "A friendly Python library for async concurrency and I/O"
 optional = false
 python-versions = ">=3.10"
 groups = ["dev"]
 files = [
-    {file = "trio-0.33.0-py3-none-any.whl", hash = "sha256:3bd5d87f781d9b0192d592aef28691f8951d6c2e41b7e1da4c25cde6c180ae9b"},
-    {file = "trio-0.33.0.tar.gz", hash = "sha256:a29b92b73f09d4b48ed249acd91073281a7f1063f09caba5dc70465b5c7aa970"},
+    {file = "trio-0.34.0-py3-none-any.whl", hash = "sha256:6c7c9f49917694dcdcd5f67abd168df5599eca480d61f29854d17a61a75c2f05"},
+    {file = "trio-0.34.0.tar.gz", hash = "sha256:63b9485408bdfdde544fced107045a8c0086cdc4bd0ef2f797b9e0dd111b964b"},
 ]
 
 [package.dependencies]
@@ -2301,4 +2301,4 @@ compatible-mypy = ["mypy"]
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.11"
-content-hash = "e37924846b0c40188aaabca524a5639d3feb4bdc42297e80f8ce949b81e63127"
+content-hash = "09c7085374a5f54eb4b9a50784958309d0fb92eb7cab288a267414121b1e0b4a"
diff --git a/pyproject.toml b/pyproject.toml
index 126cb4e9..384b816f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,7 +61,7 @@ check-laws = ["pytest", "hypothesis"]
 
 [tool.poetry.group.dev.dependencies]
 anyio = "^4.3"
-trio = "^0.33"
+trio = ">=0.33,<0.35"
 attrs = "^26.1"
 httpx = "^0.28"
 wemake-python-styleguide = "^1.7"