diff --git a/examples/grpc-bridge/client/requirements.txt b/examples/grpc-bridge/client/requirements.txt
index dcc0ba44ceed..c4382cd2ccd3 100644
--- a/examples/grpc-bridge/client/requirements.txt
+++ b/examples/grpc-bridge/client/requirements.txt
@@ -110,31 +110,33 @@ idna==3.2 \
     --hash=sha256:14475042e284991034cb48e06f6851428fb14c4dc953acd9be9a5e95c7b6dd7a \
     --hash=sha256:467fbad99067910785144ce333826c71fb0e63a425657295239737f7ecd125f3
     # via requests
-protobuf==3.19.1 \
-    --hash=sha256:038daf4fa38a7e818dd61f51f22588d61755160a98db087a046f80d66b855942 \
-    --hash=sha256:28ccea56d4dc38d35cd70c43c2da2f40ac0be0a355ef882242e8586c6d66666f \
-    --hash=sha256:36d90676d6f426718463fe382ec6274909337ca6319d375eebd2044e6c6ac560 \
-    --hash=sha256:3cd0458870ea7d1c58e948ac8078f6ba8a7ecc44a57e03032ed066c5bb318089 \
-    --hash=sha256:5935c8ce02e3d89c7900140a8a42b35bc037ec07a6aeb61cc108be8d3c9438a6 \
-    --hash=sha256:615b426a177780ce381ecd212edc1e0f70db8557ed72560b82096bd36b01bc04 \
-    --hash=sha256:62a8e4baa9cb9e064eb62d1002eca820857ab2138440cb4b3ea4243830f94ca7 \
-    --hash=sha256:655264ed0d0efe47a523e2255fc1106a22f6faab7cc46cfe99b5bae085c2a13e \
-    --hash=sha256:6e8ea9173403219239cdfd8d946ed101f2ab6ecc025b0fda0c6c713c35c9981d \
-    --hash=sha256:71b0250b0cfb738442d60cab68abc166de43411f2a4f791d31378590bfb71bd7 \
-    --hash=sha256:74f33edeb4f3b7ed13d567881da8e5a92a72b36495d57d696c2ea1ae0cfee80c \
-    --hash=sha256:77d2fadcf369b3f22859ab25bd12bb8e98fb11e05d9ff9b7cd45b711c719c002 \
-    --hash=sha256:8b30a7de128c46b5ecb343917d9fa737612a6e8280f440874e5cc2ba0d79b8f6 \
-    --hash=sha256:8e51561d72efd5bd5c91490af1f13e32bcba8dab4643761eb7de3ce18e64a853 \
-    --hash=sha256:a529e7df52204565bcd33738a7a5f288f3d2d37d86caa5d78c458fa5fabbd54d \
-    --hash=sha256:b691d996c6d0984947c4cf8b7ae2fe372d99b32821d0584f0b90277aa36982d3 \
-    --hash=sha256:d80f80eb175bf5f1169139c2e0c5ada98b1c098e2b3c3736667f28cbbea39fc8 \
-    --hash=sha256:d83e1ef8cb74009bebee3e61cc84b1c9cd04935b72bca0cbc83217d140424995 \
-    --hash=sha256:d8919368410110633717c406ab5c97e8df5ce93020cfcf3012834f28b1fab1ea \
-    --hash=sha256:db3532d9f7a6ebbe2392041350437953b6d7a792de10e629c1e4f5a6b1fe1ac6 \
-    --hash=sha256:e7b24c11df36ee8e0c085e5b0dc560289e4b58804746fb487287dda51410f1e2 \
-    --hash=sha256:e7e8d2c20921f8da0dea277dfefc6abac05903ceac8e72839b2da519db69206b \
-    --hash=sha256:e813b1c9006b6399308e917ac5d298f345d95bb31f46f02b60cd92970a9afa17 \
-    --hash=sha256:fd390367fc211cc0ffcf3a9e149dfeca78fecc62adb911371db0cec5c8b7472d
+protobuf==3.19.3 \
+    --hash=sha256:1291a0a7db7d792745c99d4657b4c5c4942695c8b1ac1bfb993a34035ec123f7 \
+    --hash=sha256:18c40a1b8721026a85187640f1786d52407dc9c1ba8ec38accb57a46e84015f6 \
+    --hash=sha256:1cb2ed66aac593adbf6dca4f07cd7ee7e2958b17bbc85b2cc8bc564ebeb258ec \
+    --hash=sha256:2acd7ca329be544d1a603d5f13a4e34a3791c90d651ebaf130ba2e43ae5397c6 \
+    --hash=sha256:2cddcbcc222f3144765ccccdb35d3621dc1544da57a9aca7e1944c1a4fe3db11 \
+    --hash=sha256:397d82f1c58b76445469c8c06b8dee1ff67b3053639d054f52599a458fac9bc6 \
+    --hash=sha256:3bf3a07d17ba3511fe5fa916afb7351f482ab5dbab5afe71a7a384274a2cd550 \
+    --hash=sha256:3f80a3491eaca767cdd86cb8660dc778f634b44abdb0dffc9b2a8e8d0cd617d0 \
+    --hash=sha256:49677e5e9c7ea1245a90c2e8a00d304598f22ea3aa0628f0e0a530a9e70665fa \
+    --hash=sha256:544fe9705189b249380fae07952d220c97f5c6c9372a6f936cc83a79601dcb70 \
+    --hash=sha256:6202df8ee8457cb00810c6e76ced480f22a1e4e02c899a14e7b6e6e1de09f938 \
+    --hash=sha256:84bf3aa3efb00dbe1c7ed55da0f20800b0662541e582d7e62b3e1464d61ed365 \
+    --hash=sha256:898bda9cd37ec0c781b598891e86435de80c3bfa53eb483a9dac5a11ec93e942 \
+    --hash=sha256:8ad761ef3be34c8bdc7285bec4b40372a8dad9e70cfbdc1793cd3cf4c1a4ce74 \
+    --hash=sha256:8ceaf5fdb72c8e1fcb7be9f2b3b07482ce058a3548180c0bdd5c7e4ac5e14165 \
+    --hash=sha256:a9401d96552befcc7311f5ef8f0fa7dba0ef5fd805466b158b141606cd0ab6a8 \
+    --hash=sha256:af7238849fa79285d448a24db686517570099739527a03c9c2971cce99cc5ae2 \
+    --hash=sha256:afa8122de8064fd577f49ae9eef433561c8ace97a0a7b969d56e8b1d39b5d177 \
+    --hash=sha256:b53519b2ebec70cfe24b4ddda21e9843f0918d7c3627a785393fb35d402ab8ad \
+    --hash=sha256:c781402ed5396ab56358d7b866d78c03a77cbc26ba0598d8bb0ac32084b1a257 \
+    --hash=sha256:d975a6314fbf5c524d4981e24294739216b5fb81ef3c14b86fb4b045d6690907 \
+    --hash=sha256:df2ba379ee42427e8fcc6a0a76843bff6efb34ef5266b17f95043939b5e25b69 \
+    --hash=sha256:e54b8650e849ee8e95e481024bff92cf98f5ec61c7650cb838d928a140adcb63 \
+    --hash=sha256:e765e6dfbbb02c55e4d6d1145743401a84fc0b508f5a81b2c5a738cf86353139 \
+    --hash=sha256:ef02d112c025e83db5d1188a847e358beab3e4bbfbbaf10eaf69e67359af51b2 \
+    --hash=sha256:f6d4b5b7595a57e69eb7314c67bef4a3c745b4caf91accaf72913d8e0635111b
     # via
     #   -r requirements.in
     #   grpcio-tools