diff --git a/build.gradle.kts b/build.gradle.kts
index 8cd621e..0491858 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -30,7 +30,7 @@ version = ver
 description = "Java Bindings for the OpenTelemetry Protocol (OTLP)"
 
 val grpcVersion = "1.76.0"
-val protobufVersion = "4.33.0"
+val protobufVersion = "4.33.1"
 
 repositories {
   mavenCentral()