diff --git a/pyproject.toml b/pyproject.toml
index 61164e3b..b34f69db 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,7 +50,7 @@ dependencies = [
   "pandas >=2.2.0",
   "pint >=0.24.4",
   "pydantic >=2.11",
-  "pydap >=3.4.0,<3.5.5", # pydap 3.5.5 is not currently supported by `xarray` (v2025.3.1)
+  "pydap >=3.4.0,<3.5.8", # pydap 3.5.5 is not currently supported by `xarray` (v2025.3.1)
   "pymbolic >=2024.2",
   "scipy >=1.11.0",
   "spotpy >=1.6.1",