diff --git a/py/BUILD.bazel b/py/BUILD.bazel
index be60118206e8d..ca772cb5dce2c 100644
--- a/py/BUILD.bazel
+++ b/py/BUILD.bazel
@@ -154,6 +154,7 @@ py_library(
     imports = ["."],
     visibility = ["//visibility:public"],
     deps = [
+        requirement("typing_extensions"),
         requirement("trio"),
         requirement("trio_websocket"),
         requirement("urllib3"),
diff --git a/py/requirements.txt b/py/requirements.txt
index 05889cb7bf364..de6ffcb9fa8e2 100644
--- a/py/requirements.txt
+++ b/py/requirements.txt
@@ -29,6 +29,7 @@ sortedcontainers==2.4.0
 toml==0.10.2
 trio>=0.20.0
 trio-websocket==0.9.2
+typing_extensions==4.9.0
 urllib3[socks]==2.0.7
 wsproto==1.2.0
 zipp==3.17.0
diff --git a/py/requirements_lock.txt b/py/requirements_lock.txt
index 47ef407676e7e..79e497a7a519b 100644
--- a/py/requirements_lock.txt
+++ b/py/requirements_lock.txt
@@ -17,7 +17,6 @@ attrs==23.1.0 \
     # via
     #   -r py/requirements.txt
     #   outcome
-    #   pytest
     #   trio
 certifi==2023.7.22 \
     --hash=sha256:539cc1d13202e33ca466e88b2807e29f4c13049d6d87031a3c110744495cb082 \
@@ -263,9 +262,7 @@ pyopenssl==22.0.0 \
 pyparsing==3.1.1 \
     --hash=sha256:32c7c0b711493c72ff18a981d24f28aaf9c1fb7ed5e9667c9e84e3db623bdbfb \
     --hash=sha256:ede28a1a32462f5a9705e07aea48001a08f7cf81a021585011deba701581a0db
-    # via
-    #   -r py/requirements.txt
-    #   packaging
+    # via -r py/requirements.txt
 pysocks==1.7.1 \
     --hash=sha256:08e69f092cc6dbe92a0fdd16eeb9b9ffbc13cadfe5ca4c7bd92ffb078b293299 \
     --hash=sha256:2725bd0a9925919b9b51739eea5f9e2bae91e83288108a9ad338b2e3a4435ee5 \
@@ -324,6 +321,10 @@ trio-websocket==0.9.2 \
     --hash=sha256:5b558f6e83cc20a37c3b61202476c5295d1addf57bd65543364e0337e37ed2bc \
     --hash=sha256:a3d34de8fac26023eee701ed1e7bf4da9a8326b61a62934ec9e53b64970fd8fe
     # via -r py/requirements.txt
+typing-extensions==4.9.0 \
+    --hash=sha256:23478f88c37f27d76ac8aee6c905017a143b0b1b886c3c9f66bc2fd94f9f5783 \
+    --hash=sha256:af72aea155e91adfc61c3ae9e0e342dbc0cba726d6cba4b6c72c1f34e47291cd
+    # via -r py/requirements.txt
 urllib3[socks]==2.0.7 \
     --hash=sha256:c97dfde1f7bd43a71c8d2a58e369e9b2bf692d1334ea9f9cae55add7d0dd0f84 \
     --hash=sha256:fdb6d215c776278489906c2f8916e6e7d4f5a9b602ccbcfdf7f016fc8da0596e
diff --git a/py/setup.py b/py/setup.py
index 4ef9b046b7c21..8e4c37878b27e 100755
--- a/py/setup.py
+++ b/py/setup.py
@@ -72,6 +72,7 @@
                  'selenium.webdriver.support', ],
     'include_package_data': True,
     'install_requires': [
+        "typing_extension~= 4.9",
         "urllib3[socks]>=1.26,<3",
         "trio~=0.17",
         "trio-websocket~=0.9",