diff --git a/tests/requirements.txt b/tests/requirements.txt
index e572845..51d601e 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -2,4 +2,4 @@ pytest>=7,<9
 pytest-asyncio-cooperative>=0.37.0,<0.38
 numpy>=1,<3
 scipy==1.*
-foamlib>=0.1.0,<0.4.0
+foamlib>=0.3,<0.4