diff --git a/examples/grpc-bridge/client/requirements.txt b/examples/grpc-bridge/client/requirements.txt
index b29c915416c1..8c95a729327e 100644
--- a/examples/grpc-bridge/client/requirements.txt
+++ b/examples/grpc-bridge/client/requirements.txt
@@ -114,31 +114,30 @@ idna==3.2 \
     --hash=sha256:14475042e284991034cb48e06f6851428fb14c4dc953acd9be9a5e95c7b6dd7a \
     --hash=sha256:467fbad99067910785144ce333826c71fb0e63a425657295239737f7ecd125f3
     # via requests
-protobuf==3.20.1 \
-    --hash=sha256:06059eb6953ff01e56a25cd02cca1a9649a75a7e65397b5b9b4e929ed71d10cf \
-    --hash=sha256:097c5d8a9808302fb0da7e20edf0b8d4703274d140fd25c5edabddcde43e081f \
-    --hash=sha256:284f86a6207c897542d7e956eb243a36bb8f9564c1742b253462386e96c6b78f \
-    --hash=sha256:32ca378605b41fd180dfe4e14d3226386d8d1b002ab31c969c366549e66a2bb7 \
-    --hash=sha256:3cc797c9d15d7689ed507b165cd05913acb992d78b379f6014e013f9ecb20996 \
-    --hash=sha256:62f1b5c4cd6c5402b4e2d63804ba49a327e0c386c99b1675c8a0fefda23b2067 \
-    --hash=sha256:69ccfdf3657ba59569c64295b7d51325f91af586f8d5793b734260dfe2e94e2c \
-    --hash=sha256:6f50601512a3d23625d8a85b1638d914a0970f17920ff39cec63aaef80a93fb7 \
-    --hash=sha256:7403941f6d0992d40161aa8bb23e12575637008a5a02283a930addc0508982f9 \
-    --hash=sha256:755f3aee41354ae395e104d62119cb223339a8f3276a0cd009ffabfcdd46bb0c \
-    --hash=sha256:77053d28427a29987ca9caf7b72ccafee011257561259faba8dd308fda9a8739 \
-    --hash=sha256:7e371f10abe57cee5021797126c93479f59fccc9693dafd6bd5633ab67808a91 \
-    --hash=sha256:9016d01c91e8e625141d24ec1b20fed584703e527d28512aa8c8707f105a683c \
-    --hash=sha256:9be73ad47579abc26c12024239d3540e6b765182a91dbc88e23658ab71767153 \
-    --hash=sha256:adc31566d027f45efe3f44eeb5b1f329da43891634d61c75a5944e9be6dd42c9 \
-    --hash=sha256:adfc6cf69c7f8c50fd24c793964eef18f0ac321315439d94945820612849c388 \
-    --hash=sha256:af0ebadc74e281a517141daad9d0f2c5d93ab78e9d455113719a45a49da9db4e \
-    --hash=sha256:cb29edb9eab15742d791e1025dd7b6a8f6fcb53802ad2f6e3adcb102051063ab \
-    --hash=sha256:cd68be2559e2a3b84f517fb029ee611546f7812b1fdd0aa2ecc9bc6ec0e4fdde \
-    --hash=sha256:cdee09140e1cd184ba9324ec1df410e7147242b94b5f8b0c64fc89e38a8ba531 \
-    --hash=sha256:db977c4ca738dd9ce508557d4fce0f5aebd105e158c725beec86feb1f6bc20d8 \
-    --hash=sha256:dd5789b2948ca702c17027c84c2accb552fc30f4622a98ab5c51fcfe8c50d3e7 \
-    --hash=sha256:e250a42f15bf9d5b09fe1b293bdba2801cd520a9f5ea2d7fb7536d4441811d20 \
-    --hash=sha256:ff8d8fa42675249bb456f5db06c00de6c2f4c27a065955917b28c4f15978b9c3
+protobuf==3.20.3 \
+    --hash=sha256:03038ac1cfbc41aa21f6afcbcd357281d7521b4157926f30ebecc8d4ea59dcb7 \
+    --hash=sha256:28545383d61f55b57cf4df63eebd9827754fd2dc25f80c5253f9184235db242c \
+    --hash=sha256:2e3427429c9cffebf259491be0af70189607f365c2f41c7c3764af6f337105f2 \
+    --hash=sha256:398a9e0c3eaceb34ec1aee71894ca3299605fa8e761544934378bbc6c97de23b \
+    --hash=sha256:44246bab5dd4b7fbd3c0c80b6f16686808fab0e4aca819ade6e8d294a29c7050 \
+    --hash=sha256:447d43819997825d4e71bf5769d869b968ce96848b6479397e29fc24c4a5dfe9 \
+    --hash=sha256:67a3598f0a2dcbc58d02dd1928544e7d88f764b47d4a286202913f0b2801c2e7 \
+    --hash=sha256:74480f79a023f90dc6e18febbf7b8bac7508420f2006fabd512013c0c238f454 \
+    --hash=sha256:819559cafa1a373b7096a482b504ae8a857c89593cf3a25af743ac9ecbd23480 \
+    --hash=sha256:899dc660cd599d7352d6f10d83c95df430a38b410c1b66b407a6b29265d66469 \
+    --hash=sha256:8c0c984a1b8fef4086329ff8dd19ac77576b384079247c770f29cc8ce3afa06c \
+    --hash=sha256:9aae4406ea63d825636cc11ffb34ad3379335803216ee3a856787bcf5ccc751e \
+    --hash=sha256:a7ca6d488aa8ff7f329d4c545b2dbad8ac31464f1d8b1c87ad1346717731e4db \
+    --hash=sha256:b6cc7ba72a8850621bfec987cb72623e703b7fe2b9127a161ce61e61558ad905 \
+    --hash=sha256:bf01b5720be110540be4286e791db73f84a2b721072a3711efff6c324cdf074b \
+    --hash=sha256:c02ce36ec760252242a33967d51c289fd0e1c0e6e5cc9397e2279177716add86 \
+    --hash=sha256:d9e4432ff660d67d775c66ac42a67cf2453c27cb4d738fc22cb53b5d84c135d4 \
+    --hash=sha256:daa564862dd0d39c00f8086f88700fdbe8bc717e993a21e90711acfed02f2402 \
+    --hash=sha256:de78575669dddf6099a8a0f46a27e82a1783c557ccc38ee620ed8cc96d3be7d7 \
+    --hash=sha256:e64857f395505ebf3d2569935506ae0dfc4a15cb80dc25261176c784662cdcc4 \
+    --hash=sha256:e67f9af1b607eb3a89aafc9bc68a9d1172aae788b2445cb9fd781bd97531f1f1 \
+    --hash=sha256:f4bd856d702e5b0d96a00ec6b307b0f51c1982c2bf9c0052cf9019e9a544ba99 \
+    --hash=sha256:f4c42102bc82a51108e449cbb32b19b180022941c727bac0cfd50170341f16ee
     # via
     #   -r requirements.in
     #   grpcio-tools