diff --git a/package/protobuf/protobuf.hash b/package/protobuf/protobuf.hash
index 9dc0f9ff07..8e5ba09c9d 100644
--- a/package/protobuf/protobuf.hash
+++ b/package/protobuf/protobuf.hash
@@ -1,3 +1,3 @@
 # Locally calculated
 sha256  6e5e117324afd944dcf67f36cf329843bc1a92229a8cd9bb573d7a83130fea7d  LICENSE
-sha256  a9fd8043fef746e8d8cca9f023fb7ba6d3d102eab6dd35a04ce7157d1928726b  protobuf-cpp-3.21.4.tar.gz
+sha256  58c8a18b4ec22655535c493155c5465a8903e8249094ceead87e00763bdbc44f  protobuf-cpp-3.21.5.tar.gz
diff --git a/package/protobuf/protobuf.mk b/package/protobuf/protobuf.mk
index ffbc39347f..199e423d71 100644
--- a/package/protobuf/protobuf.mk
+++ b/package/protobuf/protobuf.mk
@@ -7,7 +7,7 @@
 # When bumping this package, make sure to also verify if the
 # python-protobuf package still works and to update its hash,
 # as they share the same version/site variables.
-PROTOBUF_VERSION = 21.4
+PROTOBUF_VERSION = 21.5
 PROTOBUF_SOURCE = protobuf-cpp-3.$(PROTOBUF_VERSION).tar.gz
 PROTOBUF_SITE = https://github.com/protocolbuffers/protobuf/releases/download/v$(PROTOBUF_VERSION)
 PROTOBUF_LICENSE = BSD-3-Clause
diff --git a/package/python-protobuf/python-protobuf.hash b/package/python-protobuf/python-protobuf.hash
index ae2e07d637..1b106445a5 100644
--- a/package/python-protobuf/python-protobuf.hash
+++ b/package/python-protobuf/python-protobuf.hash
@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  32d8a37271f42aaa0f40659f77040484d6048b187e4a98dac09eb9ed592a91dc  protobuf-python-4.21.4.tar.gz
+sha256  4b384ad2bc6832ede8703b4567c47498bccf104cb79fd20d2d2e3069066ae245  protobuf-python-4.21.5.tar.gz
 sha256  6e5e117324afd944dcf67f36cf329843bc1a92229a8cd9bb573d7a83130fea7d  LICENSE