diff --git a/poetry.lock b/poetry.lock
index ba88fb8..aadce34 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -385,22 +385,23 @@ test = ["objgraph", "psutil"]
 
 [[package]]
 name = "gunicorn"
-version = "21.2.0"
+version = "22.0.0"
 description = "WSGI HTTP Server for UNIX"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.7"
 files = [
-    {file = "gunicorn-21.2.0-py3-none-any.whl", hash = "sha256:3213aa5e8c24949e792bcacfc176fef362e7aac80b76c56f6b5122bf350722f0"},
-    {file = "gunicorn-21.2.0.tar.gz", hash = "sha256:88ec8bff1d634f98e61b9f65bc4bf3cd918a90806c6f5c48bc5603849ec81033"},
+    {file = "gunicorn-22.0.0-py3-none-any.whl", hash = "sha256:350679f91b24062c86e386e198a15438d53a7a8207235a78ba1b53df4c4378d9"},
+    {file = "gunicorn-22.0.0.tar.gz", hash = "sha256:4a0b436239ff76fb33f11c07a16482c521a7e09c1ce3cc293c2330afe01bec63"},
 ]
 
 [package.dependencies]
 packaging = "*"
 
 [package.extras]
-eventlet = ["eventlet (>=0.24.1)"]
+eventlet = ["eventlet (>=0.24.1,!=0.36.0)"]
 gevent = ["gevent (>=1.4.0)"]
 setproctitle = ["setproctitle"]
+testing = ["coverage", "eventlet", "gevent", "pytest", "pytest-cov"]
 tornado = ["tornado (>=0.2)"]
 
 [[package]]
@@ -1705,4 +1706,4 @@ dev = ["black (>=19.3b0)", "pytest (>=4.6.2)"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "ad67c18cd25b85c4c02cbe0d145f09987f349b1ce8575bc5cb9bfbb88ab33557"
+content-hash = "7fdc432fae3b3a34ca99984fb5f2415f01d2096ea554e56c193b3c6fbc8ac514"
diff --git a/pyproject.toml b/pyproject.toml
index 747c39b..4bbdfb4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ orjson = "^3.10.0"
 
 [tool.poetry.group.dev.dependencies]
 loguru = "^0.7.2"
-gunicorn = "^21.2.0"
+gunicorn = "^22.0.0"
 
 [tool.poetry.plugins."console_scripts"]
 pufferblow-api = "pufferblow:cli.run"