diff --git a/tljh/config-schema.json b/tljh/config-schema.json
new file mode 100644
index 0000000..15591da
--- /dev/null
+++ b/tljh/config-schema.json
@@ -0,0 +1 @@
+file:///home/bradfojb/Desktop/Personal-Repos/the-littlest-jupyterhub/schema.json
\ No newline at end of file
diff --git a/tljh/config.py b/tljh/config.py
index d308e9e..09ecef0 100644
--- a/tljh/config.py
+++ b/tljh/config.py
@@ -154,6 +154,13 @@ def remove_item_from_config(config, property_path, value):
     return config_copy
 
 
+def validate_config(config):
+    import json
+    import jsonschema
+    config_schema = json.load("config-schema.json")
+    jsonschema.validate(instance=config, schema=config_schema)
+
+
 def show_config(config_path):
     """
     Pretty print config from given config_path
@@ -180,6 +187,7 @@ def set_config_value(config_path, key_path, value):
         config = {}
 
     config = set_item_in_config(config, key_path, value)
+    validate_config(config)
 
     with open(config_path, "w") as f:
         yaml.dump(config, f)
diff --git a/tljh/requirements-hub-env.txt b/tljh/requirements-hub-env.txt
index 62f39f4..cde66e4 100644
--- a/tljh/requirements-hub-env.txt
+++ b/tljh/requirements-hub-env.txt
@@ -17,6 +17,8 @@ jupyterhub-tmpauthenticator>=1.0.0,<2
 oauthenticator[azuread]>=16.0.4,<17
 jupyterhub-idle-culler>=1.2.1,<2
 
+jsonschema
+
 # pycurl is installed to improve reliability and performance for when JupyterHub
 # makes web requests. JupyterHub will use tornado's CurlAsyncHTTPClient when
 # making requests over tornado's SimpleHTTPClient automatically if pycurl is