diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index db0af33..3e71440 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -39,7 +39,8 @@ repos:
             "async_generator",
             "pytray>=0.2.2, <0.4.0",
             "deprecation",
-            "aio-pika",
+            "aio-pika~=6.6,<6.8.2",
+            "pamqp~=2.0",
             "pyyaml~=5.1",
             "pytest~=5.4",
             "pytest-notebook",
diff --git a/docs/source/conf.py b/docs/source/conf.py
index fba676c..7bd9259 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -75,7 +75,7 @@
 #
 # This is also used if you do content translation via gettext catalogs.
 # Usually you set "language" from the command line for these cases.
-language = None
+language = 'en'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
diff --git a/setup.py b/setup.py
index 39eb24b..d022972 100644
--- a/setup.py
+++ b/setup.py
@@ -39,7 +39,7 @@
             'sphinx-autobuild',
         ],
         'pre-commit': ['pre-commit~=2.2', 'pylint==2.5.2'],
-        'rmq': ['aio-pika', 'pyyaml~=5.1'],
+        'rmq': ['aio-pika~=6.6,<6.8.2', 'pamqp~=2.0', 'pyyaml~=5.1'],
         'tests': [
             'coverage',
             'ipykernel',
diff --git a/test/rmq/test_rmq_thread_communicator.py b/test/rmq/test_rmq_thread_communicator.py
index 68f5997..7ddf954 100644
--- a/test/rmq/test_rmq_thread_communicator.py
+++ b/test/rmq/test_rmq_thread_communicator.py
@@ -2,7 +2,6 @@
 # pylint: disable=invalid-name, redefined-outer-name
 import concurrent.futures
 import pathlib
-import sys
 import unittest
 
 import pytest