diff --git a/CMakeLists.txt b/CMakeLists.txt
index ab6c4b675..397e15953 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -359,7 +359,7 @@ set(GNSSSDR_ARMADILLO_LOCAL_VERSION "15.2.x")
 set(GNSSSDR_GFLAGS_LOCAL_VERSION "2.3.0")
 set(GNSSSDR_GLOG_LOCAL_VERSION "0.7.1")
 set(GNSSSDR_MATIO_LOCAL_VERSION "1.5.30")
-set(GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION "33.2")
+set(GNSSSDR_PROTOCOLBUFFERS_LOCAL_VERSION "34.1")
 set(GNSSSDR_PUGIXML_LOCAL_VERSION "1.15")
 set(GNSSSDR_GTEST_LOCAL_VERSION "1.17.0")
 set(GNSSSDR_GNSS_SIM_LOCAL_VERSION "origin/master")