diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 88a2af81..4b98174f 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -7,7 +7,7 @@ junit = "5.10.2"
 maven-publish = "0.28.0"
 # When updating, make sure to update buf.gen.yaml and src/test/resources/proto/buf.gen.*.yaml versions to match
 # and regenerate code with 'make generate'.
-protobuf = "3.25.3"
+protobuf = "4.26.0"
 
 [libraries]
 assertj = { module = "org.assertj:assertj-core", version.ref = "assertj" }