diff --git a/myst_nb/cache.py b/myst_nb/cache.py
index f2d5cb66..4326c1c0 100644
--- a/myst_nb/cache.py
+++ b/myst_nb/cache.py
@@ -221,7 +221,7 @@ def _read_nb_output_cells(source_path, jupyter_execute_notebooks):
         and jupyter_execute_notebooks == "auto"
         and "ipynb" in ext
     ):
-        with open(source_path, "r", enconding="utf8") as f:
+        with open(source_path, "r", encoding="utf8") as f:
             ntbk = nbf.read(f, as_version=4)
             has_outputs = all(
                 len(cell.outputs) != 0
diff --git a/myst_nb/nb_glue/utils.py b/myst_nb/nb_glue/utils.py
index 83e5547a..96c30fbf 100644
--- a/myst_nb/nb_glue/utils.py
+++ b/myst_nb/nb_glue/utils.py
@@ -26,7 +26,7 @@ def read_glue_cache(path):
     if not path.exists():
         raise FileNotFoundError(f"A glue cache was not found at: {path}")
 
-    data = json.load(path.open(enconding="utf8"))
+    data = json.load(path.open(encoding="utf8"))
     return data
 
 
diff --git a/tests/notebooks/basic_relative.ipynb b/tests/notebooks/basic_relative.ipynb
index 96ddd45c..f8eda8a6 100644
--- a/tests/notebooks/basic_relative.ipynb
+++ b/tests/notebooks/basic_relative.ipynb
@@ -16,7 +16,7 @@
    "outputs": [],
    "source": [
     "# Test reading a relative file to make sure relative paths work\n",
-    "with open(\"./conf.py\",encoding="utf-8") as ff:\n",
+    "with open(\"./conf.py\") as ff:\n",
     "    ff.read()"
    ]
   }