diff --git a/pyproject.toml b/pyproject.toml
index 806231f..c4e46df 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ dependencies = [
     "xraylib",
     "numpy",
     "hdf5plugin",
-    "swmr_tools<0.7.0",
+    "swmr_tools<0.10.0",
     "blosc",
     "stomp.py",
 ]