diff --git a/requirements-healpy.txt b/requirements-healpy.txt
index e53c9fc38..b1e28f6a2 100644
--- a/requirements-healpy.txt
+++ b/requirements-healpy.txt
@@ -32,4 +32,4 @@ six==1.17.0 ; python_version >= "3.11" and python_version < "3.15"
 tqdm==4.70.1 ; python_version >= "3.11" and python_version < "3.15"
 tzdata==2026.2 ; python_version >= "3.11" and python_version < "3.15" and (sys_platform == "win32" or sys_platform == "emscripten")
 urllib3==2.8.0 ; python_version >= "3.11" and python_version < "3.15"
-xarray==2026.4.0 ; python_version >= "3.11" and python_version < "3.15"
+xarray==2026.9.0 ; python_version >= "3.11" and python_version < "3.15"
diff --git a/requirements-jax.txt b/requirements-jax.txt
index ecabf90dd..4ab2393af 100644
--- a/requirements-jax.txt
+++ b/requirements-jax.txt
@@ -36,4 +36,4 @@ six==1.17.0 ; python_version >= "3.11" and python_version < "3.15"
 tqdm==4.70.1 ; python_version >= "3.11" and python_version < "3.15"
 tzdata==2026.2 ; python_version >= "3.11" and python_version < "3.15" and (sys_platform == "win32" or sys_platform == "emscripten")
 urllib3==2.8.0 ; python_version >= "3.11" and python_version < "3.15"
-xarray==2026.4.0 ; python_version >= "3.11" and python_version < "3.15"
+xarray==2026.9.0 ; python_version >= "3.11" and python_version < "3.15"
diff --git a/requirements-pytorch.txt b/requirements-pytorch.txt
index e8ad62aea..9ab392160 100644
--- a/requirements-pytorch.txt
+++ b/requirements-pytorch.txt
@@ -60,4 +60,4 @@ triton==3.8.0 ; python_version >= "3.11" and python_version < "3.15" and platfor
 typing-extensions==4.15.0 ; python_version >= "3.11" and python_version < "3.15"
 tzdata==2026.2 ; python_version >= "3.11" and python_version < "3.15" and (sys_platform == "win32" or sys_platform == "emscripten")
 urllib3==2.8.0 ; python_version >= "3.11" and python_version < "3.15"
-xarray==2026.4.0 ; python_version >= "3.11" and python_version < "3.15"
+xarray==2026.9.0 ; python_version >= "3.11" and python_version < "3.15"