diff --git a/poetry.lock b/poetry.lock
index 8d54974..3a04137 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -508,15 +508,15 @@ python-versions = ">=3.7"
 
 [[package]]
 name = "urllib3"
-version = "1.26.9"
+version = "1.26.16"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
 category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*"
 
 [package.extras]
 brotli = ["brotlicffi (>=0.8.0)", "brotli (>=1.0.9)", "brotlipy (>=0.6.0)"]
-secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "ipaddress"]
+secure = ["pyOpenSSL (>=0.14)", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "certifi", "urllib3-secure-extra", "ipaddress"]
 socks = ["PySocks (>=1.5.6,!=1.5.7,<2.0)"]
 
 [[package]]
@@ -548,7 +548,7 @@ python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "fafe09e8538da6dab93f52b2a06b117f87893e694c72f5e4a02c0d021176c5dd"
+content-hash = "d0ff5452a76892b9147cc65df12e9496a61491b6a76e7f295ce4b896d743eee4"
 
 [metadata.files]
 astor = [
@@ -894,10 +894,7 @@ typing-extensions = [
     {file = "typing_extensions-4.2.0-py3-none-any.whl", hash = "sha256:6657594ee297170d19f67d55c05852a874e7eb634f4f753dbd667855e07c1708"},
     {file = "typing_extensions-4.2.0.tar.gz", hash = "sha256:f1c24655a0da0d1b67f07e17a5e6b2a105894e6824b92096378bb3668ef02376"},
 ]
-urllib3 = [
-    {file = "urllib3-1.26.9-py2.py3-none-any.whl", hash = "sha256:44ece4d53fb1706f667c9bd1c648f5469a2ec925fcf3a776667042d645472c14"},
-    {file = "urllib3-1.26.9.tar.gz", hash = "sha256:aabaf16477806a5e1dd19aa41f8c2b7950dd3c746362d7e3223dbe6de6ac448e"},
-]
+urllib3 = []
 virtualenv = [
     {file = "virtualenv-20.14.1-py2.py3-none-any.whl", hash = "sha256:e617f16e25b42eb4f6e74096b9c9e37713cf10bf30168fb4a739f3fa8f898a3a"},
     {file = "virtualenv-20.14.1.tar.gz", hash = "sha256:ef589a79795589aada0c1c5b319486797c03b67ac3984c48c669c0e4f50df3a5"},
diff --git a/pyproject.toml b/pyproject.toml
index eaab71a..ab5aeaf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,6 +24,7 @@ include = ["gpsoauth/py.typed"]
 python = "^3.8"
 pycryptodomex = ">= 3.0"
 requests = ">= 2.0.0"
+urllib3 = "<2.0"
 
 [tool.poetry.dev-dependencies]
 pre-commit = "^2.11.1"