diff --git a/slim/otlp/go.mod b/slim/otlp/go.mod
index 12df253..e4940ac 100644
--- a/slim/otlp/go.mod
+++ b/slim/otlp/go.mod
@@ -2,6 +2,6 @@ module go.opentelemetry.io/proto/slim/otlp
 
 go 1.17
 
-require google.golang.org/protobuf v1.35.1
+require google.golang.org/protobuf v1.35.2
 
 require github.com/google/go-cmp v0.6.0 // indirect
diff --git a/slim/otlp/go.sum b/slim/otlp/go.sum
index efc3a16..9924512 100644
--- a/slim/otlp/go.sum
+++ b/slim/otlp/go.sum
@@ -4,5 +4,5 @@ github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
-google.golang.org/protobuf v1.35.1 h1:m3LfL6/Ca+fqnjnlqQXNpFPABW1UD7mjh8KO2mKFytA=
-google.golang.org/protobuf v1.35.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
+google.golang.org/protobuf v1.35.2/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=