diff --git a/strands-py/pyproject.toml b/strands-py/pyproject.toml
index 681c17db4..dbc1aa308 100644
--- a/strands-py/pyproject.toml
+++ b/strands-py/pyproject.toml
@@ -95,7 +95,7 @@ dev = [
     "pre-commit>=3.2.0,<4.7.0",
     "pytest>=9.0.0,<10.0.0",
     "pytest-cov>=7.0.0,<8.0.0",
-    "pytest-asyncio>=1.0.0,<1.4.0",
+    "pytest-asyncio>=1.0.0,<1.5.0",
     "pytest-timeout>=2.0.0,<3.0.0",
     "pytest-xdist>=3.0.0,<4.0.0",
     "ruff>=0.13.0,<0.15.0",
@@ -154,7 +154,7 @@ extra-args = ["-n", "auto", "-vv"]
 dependencies = [
     "pytest>=9.0.0,<10.0.0",
     "pytest-cov>=7.0.0,<8.0.0",
-    "pytest-asyncio>=1.0.0,<1.4.0",
+    "pytest-asyncio>=1.0.0,<1.5.0",
     "pytest-timeout>=2.0.0,<3.0.0",
     "pytest-xdist>=3.0.0,<4.0.0",
     "pytest-timeout>=2.0.0,<3.0.0",