diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 477b5c06..6c4a4843 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,38 +18,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
-        redis-py: ["4.1.2", "4.2.2"]
+        python-version: ["3.8", "3.9", "3.10"]
+        redis-py: ["4.1.2", "4.3.1"]
         aioredis: ["2.0.1"]
-        exclude:
-          - python-version: "3.7"
-            redis-py: "4.2.2"
-            aioredis: "2.0.1"
-          - python-version: "3.8"
-            redis-py: "4.2.2"
-            aioredis: "2.0.1"
         include:
-          - python-version: "3.9"
-            redis-py: "4.2.*"
-            aioredis: "1.3.1"
           - python-version: "3.10"
             redis-py: "2.10.6"
             aioredis: "1.3.1"
-          - python-version: "3.10"
-            redis-py: "3.0.1"
-            aioredis: "1.3.1"
-          - python-version: "3.10"
-            redis-py: "3.1.0"
-            aioredis: "1.3.1"
-          - python-version: "3.10"
-            redis-py: "3.2.1"
-            aioredis: "1.3.1"
-          - python-version: "3.10"
-            redis-py: "3.3.11"
-            aioredis: "1.3.1"
-          - python-version: "3.10"
-            redis-py: "3.4.1"
-            aioredis: "1.3.1"
           - python-version: "3.10"
             redis-py: "3.5.3"
             aioredis: "1.3.1"
@@ -57,10 +32,7 @@ jobs:
             redis-py: "4.0.1"
             aioredis: "1.3.1"
           - python-version: "3.10"
-            redis-py: "4.1.*"
-            aioredis: "2.0.1"
-          - python-version: "3.10"
-            redis-py: "4.2.*"
+            redis-py: "4.2.2"
             aioredis: "2.0.1"
             coverage: yes
     services:
diff --git a/fakeredis/__init__.py b/fakeredis/__init__.py
index 99a99e9e..d5b49469 100644
--- a/fakeredis/__init__.py
+++ b/fakeredis/__init__.py
@@ -1,4 +1,4 @@
 from ._server import FakeServer, FakeRedis, FakeStrictRedis, FakeConnection   # noqa: F401
 
 
-__version__ = '1.7.4'
+__version__ = '1.7.5'
diff --git a/fakeredis/_server.py b/fakeredis/_server.py
index ac58966d..99d75adf 100644
--- a/fakeredis/_server.py
+++ b/fakeredis/_server.py
@@ -3,7 +3,6 @@
 import inspect
 import itertools
 import logging
-import math
 import pickle
 import queue
 import random
@@ -15,6 +14,7 @@
 from collections import defaultdict
 from collections.abc import MutableMapping
 
+import math
 import redis
 import six
 
@@ -87,7 +87,7 @@
 FLAG_NO_SCRIPT = 's'  # Command not allowed in scripts
 
 # This needs to be grabbed early to avoid breaking tests that mock redis.Redis.
-_ORIG_SIG = inspect.signature(redis.Redis)
+# _ORIG_SIG = inspect.signature(redis.Redis)
 
 
 class SimpleString:
@@ -2799,20 +2799,23 @@ class FakeRedisMixin:
     def __init__(self, *args, server=None, connected=True, **kwargs):
         # Interpret the positional and keyword arguments according to the
         # version of redis in use.
-        bound = _ORIG_SIG.bind(*args, **kwargs)
-        bound.apply_defaults()
-        if not bound.arguments['connection_pool']:
-            charset = bound.arguments['charset']
-            errors = bound.arguments['errors']
+        default_args = inspect.signature(redis.Redis.__init__).parameters.values()
+        kwds = {p.name: p.default for p in default_args if p.default != inspect._empty}
+        kwds.update(kwargs)
+        # bound = _ORIG_SIG.bind(*args, **params)
+        # kwds = bound.arguments['kwds']
+        if not kwds['connection_pool']:
+            charset = kwds['charset']
+            errors = kwds['errors']
             # Adapted from redis-py
             if charset is not None:
                 warnings.warn(DeprecationWarning(
                     '"charset" is deprecated. Use "encoding" instead'))
-                bound.arguments['encoding'] = charset
+                kwds['encoding'] = charset
             if errors is not None:
                 warnings.warn(DeprecationWarning(
                     '"errors" is deprecated. Use "encoding_errors" instead'))
-                bound.arguments['encoding_errors'] = errors
+                kwds['encoding_errors'] = errors
 
             if server is None:
                 server = FakeServer()
@@ -2835,10 +2838,10 @@ def __init__(self, *args, server=None, connected=True, **kwargs):
                 'client_name'
             ]
             for arg in conn_pool_args:
-                if arg in bound.arguments:
-                    kwargs[arg] = bound.arguments[arg]
-            bound.arguments['connection_pool'] = redis.connection.ConnectionPool(**kwargs)
-        super().__init__(*bound.args, **bound.kwargs)
+                if arg in kwds:
+                    kwargs[arg] = kwds[arg]
+            kwds['connection_pool'] = redis.connection.ConnectionPool(**kwargs)
+        super().__init__(*args, **kwds)
 
     @classmethod
     def from_url(cls, *args, **kwargs):
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 852007a1..13decaf5 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,4 +1,4 @@
-invoke==1.7.0
+invoke==1.7.1
 wheel==0.37.1
 tox==3.25.0
 twine==4.0.0
diff --git a/requirements.txt b/requirements.txt
index 978939c0..76b1ab33 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,11 +2,11 @@ aioredis==2.0.1
 async-timeout==4.0.2
 attrs==21.4.0
 deprecated==1.2.13
-hypothesis==6.45.0
+hypothesis==6.46.3
 lupa==1.13
 packaging==21.3
-redis==4.2.2
+redis==4.3.1
 six==1.16.0
 typing-extensions==4.2.0
-wrapt==1.14.0
+wrapt==1.14.1
 zipp==3.8.0
diff --git a/setup.cfg b/setup.cfg
index d1afa418..483d28e7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -14,7 +14,6 @@ classifiers =
     Development Status :: 5 - Production/Stable
     License :: OSI Approved :: BSD License
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
@@ -24,13 +23,10 @@ classifiers =
 packages = fakeredis
 install_requires =
     packaging
-    # Minor version updates to redis tend to break fakeredis. If you
-    # need to use fakeredis with a newer redis, please submit a PR that
-    # relaxes this restriction and adds it to the Github Actions tests.
-    redis<=4.2.2
+    redis<=4.3.1
     six>=1.12
     sortedcontainers
-python_requires = >=3.5
+python_requires = >=3.7
 
 [options.extras_require]
 lua =
@@ -38,7 +34,6 @@ lua =
 aioredis =
     aioredis
 
-# Tool configurations below here
 
 [flake8]
 max-line-length = 119