diff --git a/pyproject.toml b/pyproject.toml
index 0afb3b91..a95a0d67 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ classifiers = [
 description = "Create an IOC from a PandA"
 dependencies = [
   "setuptools>=64",
-  "numpy<2",                                # until https://github.com/mdavidsaver/p4p/issues/145 is fixed
+  "numpy<3",                                # until https://github.com/mdavidsaver/p4p/issues/145 is fixed
   "click",
   "h5py",
   "softioc>=4.4.0",
@@ -40,7 +40,7 @@ dev = [
   "p4p",
   "pydata-sphinx-theme>=0.12",
   "pytest>=8.2.0",
-  "pytest-asyncio~=0.21.2",    # https://github.com/PandABlocks/PandABlocks-ioc/issues/84
+  "pytest-asyncio>=0.21.2,<0.26.0",    # https://github.com/PandABlocks/PandABlocks-ioc/issues/84
   "pytest-cov",
   "ruff",
   "sphinx-autobuild",