diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 0719a74..89d8983 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -24,7 +24,7 @@ repos:
     - id: isort
 
   - repo: https://github.com/psf/black
-    rev: 21.5b2
+    rev: 22.10.0
     hooks:
     - id: black
 
@@ -51,7 +51,7 @@ repos:
       - fastapi~=0.65.1
       - uvicorn[standard]>=0.12.0,<0.14.0
       - pydantic~=1.8.2
-      - graphene
+      - graphene<3
       - lark
       - python-jose
       - python-multipart
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 0ded738..146a7a4 100755
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -52,7 +52,7 @@
     else "{}-{}".format(copyright_first_year, current_year)
 )
 # pylint: disable=redefined-builtin
-copyright = u"{}, {}. All rights reserved".format(
+copyright = "{}, {}. All rights reserved".format(
     copyright_year_string, copyright_owners
 )
 
diff --git a/docs/source/user_guide/tutorial.md b/docs/source/user_guide/tutorial.md
index 465c225..eeb515c 100644
--- a/docs/source/user_guide/tutorial.md
+++ b/docs/source/user_guide/tutorial.md
@@ -16,7 +16,7 @@ For some of the REST API endpoints, you need an authentication token. Do the fol
 
 To follow the steps in the tutorial below, you can use the Swagger Javascript client, which you can access at http://127.0.0.1:8000/docs
 
-<!-- 
+<!--
 You will also need a tool to make HTTP requests. Here are two options:
 
 **Option 1: HTTPie command line tool**
@@ -60,7 +60,7 @@ print( response.json )
 Here, we show how the REST API can be used to submit a WorkChain process to add two integers.
 
 ### Step 1: Post Code Object
-   
+
 Request URL: http://127.0.0.1:8000/nodes
 Request Body:
 ```json
@@ -144,7 +144,7 @@ After retrieving the UUIDs, the process is submitted at `/processes` endpoint as
    Request URL: http://127.0.0.1:8000/processes
 
    Request Body:
-   ```json 
+   ```json
    {
       "label": "report_process",
       "process_entry_point": "aiida.calculations:arithmetic.add",
@@ -160,7 +160,7 @@ After retrieving the UUIDs, the process is submitted at `/processes` endpoint as
    ```
 
    Response Body:
-   ```json
+   ```
    {
       "id": 64,
       "uuid": "6bc238e2-0dec-4449-bbe0-3cf181df00eb",
@@ -188,7 +188,7 @@ Once the process is submitted, its status can be checked:
 Request URL: http://127.0.0.1:8000/processes/64
 
 Response Body:
-```json
+```
 {
    "id": 64,
    "uuid": "6bc238e2-0dec-4449-bbe0-3cf181df00eb",
diff --git a/tests/test_graphql/test_full/test_full.yml b/tests/test_graphql/test_full/test_full.yml
index 5155d41..f678be5 100644
--- a/tests/test_graphql/test_full/test_full.yml
+++ b/tests/test_graphql/test_full/test_full.yml
@@ -1,4 +1,4 @@
 data:
-  aiidaVersion: 1.6.5
+  aiidaVersion: 1.6.9
   node:
     label: node 1