diff --git a/opentelemetry-proto/CHANGELOG.md b/opentelemetry-proto/CHANGELOG.md
index 383e1400d2..dba7355226 100644
--- a/opentelemetry-proto/CHANGELOG.md
+++ b/opentelemetry-proto/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog
 
 ## vNext
+-  Update protobuf definitions to v1.3.2 [#1945](https://github.com/open-telemetry/opentelemetry-rust/pull/1945)
 
 ## v0.7.0
 
diff --git a/opentelemetry-proto/src/proto/opentelemetry-proto b/opentelemetry-proto/src/proto/opentelemetry-proto
index b3060d2104..40b3c1b746 160000
--- a/opentelemetry-proto/src/proto/opentelemetry-proto
+++ b/opentelemetry-proto/src/proto/opentelemetry-proto
@@ -1 +1 @@
-Subproject commit b3060d2104df364136d75a35779e6bd48bac449a
+Subproject commit 40b3c1b746767cbc13c2e39da3eaf1a23e54ffdd