diff --git a/protobuf/src/descriptor.rs b/protobuf/src/descriptor.rs
index 9179a17e0..bb79c3cf0 100644
--- a/protobuf/src/descriptor.rs
+++ b/protobuf/src/descriptor.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/doctest_pb.rs b/protobuf/src/doctest_pb.rs
index 327ffe497..cf2809df6 100644
--- a/protobuf/src/doctest_pb.rs
+++ b/protobuf/src/doctest_pb.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/plugin.rs b/protobuf/src/plugin.rs
index 4251b9527..31c51bec7 100644
--- a/protobuf/src/plugin.rs
+++ b/protobuf/src/plugin.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/rustproto.rs b/protobuf/src/rustproto.rs
index 2c22af13b..7c0a4d99c 100644
--- a/protobuf/src/rustproto.rs
+++ b/protobuf/src/rustproto.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/well_known_types/any.rs b/protobuf/src/well_known_types/any.rs
index 6b8d343c6..4195dfe9a 100644
--- a/protobuf/src/well_known_types/any.rs
+++ b/protobuf/src/well_known_types/any.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/well_known_types/api.rs b/protobuf/src/well_known_types/api.rs
index afd19d391..016dd949b 100644
--- a/protobuf/src/well_known_types/api.rs
+++ b/protobuf/src/well_known_types/api.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/well_known_types/duration.rs b/protobuf/src/well_known_types/duration.rs
index 1162a596a..204387617 100644
--- a/protobuf/src/well_known_types/duration.rs
+++ b/protobuf/src/well_known_types/duration.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/well_known_types/empty.rs b/protobuf/src/well_known_types/empty.rs
index acb4d00f3..675826a3d 100644
--- a/protobuf/src/well_known_types/empty.rs
+++ b/protobuf/src/well_known_types/empty.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/well_known_types/field_mask.rs b/protobuf/src/well_known_types/field_mask.rs
index 9a31c0a3e..901cf7f1c 100644
--- a/protobuf/src/well_known_types/field_mask.rs
+++ b/protobuf/src/well_known_types/field_mask.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/well_known_types/source_context.rs b/protobuf/src/well_known_types/source_context.rs
index 7edcecccf..94917ab38 100644
--- a/protobuf/src/well_known_types/source_context.rs
+++ b/protobuf/src/well_known_types/source_context.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/well_known_types/struct_.rs b/protobuf/src/well_known_types/struct_.rs
index d565c815d..7b61e6a24 100644
--- a/protobuf/src/well_known_types/struct_.rs
+++ b/protobuf/src/well_known_types/struct_.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/well_known_types/timestamp.rs b/protobuf/src/well_known_types/timestamp.rs
index 869269680..b3ecd2867 100644
--- a/protobuf/src/well_known_types/timestamp.rs
+++ b/protobuf/src/well_known_types/timestamp.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/well_known_types/type_.rs b/protobuf/src/well_known_types/type_.rs
index a342830fb..23e0954da 100644
--- a/protobuf/src/well_known_types/type_.rs
+++ b/protobuf/src/well_known_types/type_.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated
 
diff --git a/protobuf/src/well_known_types/wrappers.rs b/protobuf/src/well_known_types/wrappers.rs
index 7e96c2145..ee6d2ba34 100644
--- a/protobuf/src/well_known_types/wrappers.rs
+++ b/protobuf/src/well_known_types/wrappers.rs
@@ -1,4 +1,4 @@
-// This file is generated by rust-protobuf 3.0.0-pre. Do not edit
+// This file is generated by rust-protobuf 3.3.0-pre. Do not edit
 // .proto file is parsed by protoc --rust-out=...
 // @generated