diff --git a/build.gradle.kts b/build.gradle.kts
index 78d5db9..86a3a45 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -27,7 +27,7 @@ tasks {
 description = "Java Bindings for the OpenTelemetry Protocol (OTLP)"
 
 val grpcVersion = "1.73.0"
-val protobufVersion = "4.31.0"
+val protobufVersion = "4.31.1"
 
 repositories {
   mavenCentral()