diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 6db093b2dbb..00e5087c12c 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -13,7 +13,7 @@ repos:
       - id: isort
   # https://github.com/python/black#version-control-integration
   - repo: https://github.com/psf/black
-    rev: 21.10b0
+    rev: 21.11b1
     hooks:
       - id: black
       - id: black-jupyter
diff --git a/xarray/core/dataarray.py b/xarray/core/dataarray.py
index 1b96f22b744..20d0302384c 100644
--- a/xarray/core/dataarray.py
+++ b/xarray/core/dataarray.py
@@ -2891,7 +2891,7 @@ def from_dict(cls, d: dict) -> "DataArray":
                 "name": "a",
             }
 
-        where "t" is the name of the dimesion, "a" is the name of the array,
+        where "t" is the name of the dimension, "a" is the name of the array,
         and x and t are lists, numpy.arrays, or pandas objects.
 
         Parameters