diff --git a/pyproject.toml b/pyproject.toml
index 9e778e69..cdc1a3a1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ dependencies = [
     "numpy>=2.0",
     "scipy>=1.13",
     "pandas>=2.2",
-    "xarray>=2024.6,<=2024.11",
+    "xarray>=2024.6",
     "bottleneck>=1.4",
     "coloredlogs",
     "toml",
diff --git a/src/muse/readers/toml.py b/src/muse/readers/toml.py
index 2f88e892..615d99eb 100644
--- a/src/muse/readers/toml.py
+++ b/src/muse/readers/toml.py
@@ -754,4 +754,5 @@ def read_technodata(
 
     year = sorted(set(time_framework).union(technologies.year.data.tolist()))
     technologies = technologies.interp(year=year, method=interpolation_mode)
+    technologies = technologies.set_index(commodity="commodity")  # See PR #638
     return technologies