diff --git a/LICENSE b/LICENSE
index 1040748..1d56d56 100644
--- a/LICENSE
+++ b/LICENSE
@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2024 Buf Technologies, Inc.
+   Copyright 2024-2025 Buf Technologies, Inc.
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
diff --git a/Makefile b/Makefile
index 84253a8..b687e25 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ MAKEFLAGS += --no-print-directory
 BIN := .tmp/bin
 export PATH := $(abspath $(BIN)):$(PATH)
 export GOBIN := $(abspath $(BIN))
-COPYRIGHT_YEARS := 2024
+COPYRIGHT_YEARS := 2024-2025
 LICENSE_IGNORE := --ignore /testdata/
 
 BUF_VERSION := v1.42.0
diff --git a/client.go b/client.go
index e8b0420..51010a1 100644
--- a/client.go
+++ b/client.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/cmd/protoc-gen-pluginrpc-go/main.go b/cmd/protoc-gen-pluginrpc-go/main.go
index 8f632c2..1829a78 100644
--- a/cmd/protoc-gen-pluginrpc-go/main.go
+++ b/cmd/protoc-gen-pluginrpc-go/main.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/code.go b/code.go
index d6c409f..733d789 100644
--- a/code.go
+++ b/code.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/codec.go b/codec.go
index d8f2864..3b17a68 100644
--- a/codec.go
+++ b/codec.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/env.go b/env.go
index ec40bfc..56fac26 100644
--- a/env.go
+++ b/env.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/error.go b/error.go
index 1fe1bda..005ed25 100644
--- a/error.go
+++ b/error.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/exit_error.go b/exit_error.go
index 59d31a5..f8fb3db 100644
--- a/exit_error.go
+++ b/exit_error.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/flags.go b/flags.go
index 95a0631..fd0d432 100644
--- a/flags.go
+++ b/flags.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/format.go b/format.go
index 51a6b7d..23be57f 100644
--- a/format.go
+++ b/format.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/handler.go b/handler.go
index 343817f..c766c8b 100644
--- a/handler.go
+++ b/handler.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/internal/example/cmd/echo-error-client/main.go b/internal/example/cmd/echo-error-client/main.go
index e614617..7e2496e 100644
--- a/internal/example/cmd/echo-error-client/main.go
+++ b/internal/example/cmd/echo-error-client/main.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/internal/example/cmd/echo-list-client/main.go b/internal/example/cmd/echo-list-client/main.go
index 206536a..395e57a 100644
--- a/internal/example/cmd/echo-list-client/main.go
+++ b/internal/example/cmd/echo-list-client/main.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/internal/example/cmd/echo-plugin/main.go b/internal/example/cmd/echo-plugin/main.go
index 5dfe7b8..8e91cce 100644
--- a/internal/example/cmd/echo-plugin/main.go
+++ b/internal/example/cmd/echo-plugin/main.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/internal/example/cmd/echo-request-client/main.go b/internal/example/cmd/echo-request-client/main.go
index 4d99e70..46a1cea 100644
--- a/internal/example/cmd/echo-request-client/main.go
+++ b/internal/example/cmd/echo-request-client/main.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/internal/example/gen/pluginrpc/example/v1/example.pb.go b/internal/example/gen/pluginrpc/example/v1/example.pb.go
index bc22287..99b7c96 100644
--- a/internal/example/gen/pluginrpc/example/v1/example.pb.go
+++ b/internal/example/gen/pluginrpc/example/v1/example.pb.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/internal/example/gen/pluginrpc/example/v1/examplev1pluginrpc/example.pluginrpc.go b/internal/example/gen/pluginrpc/example/v1/examplev1pluginrpc/example.pluginrpc.go
index c264c11..283f9fb 100644
--- a/internal/example/gen/pluginrpc/example/v1/examplev1pluginrpc/example.pluginrpc.go
+++ b/internal/example/gen/pluginrpc/example/v1/examplev1pluginrpc/example.pluginrpc.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/internal/example/proto/pluginrpc/example/v1/example.proto b/internal/example/proto/pluginrpc/example/v1/example.proto
index 8b5d42d..172e0eb 100644
--- a/internal/example/proto/pluginrpc/example/v1/example.proto
+++ b/internal/example/proto/pluginrpc/example/v1/example.proto
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/main.go b/main.go
index 5c71f31..128bb7f 100644
--- a/main.go
+++ b/main.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/main_unix.go b/main_unix.go
index 23770f8..3c5a4f2 100644
--- a/main_unix.go
+++ b/main_unix.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/main_windows.go b/main_windows.go
index 35f817d..6191f9e 100644
--- a/main_windows.go
+++ b/main_windows.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/pluginrpc.go b/pluginrpc.go
index db472da..d508a41 100644
--- a/pluginrpc.go
+++ b/pluginrpc.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/pluginrpc_test.go b/pluginrpc_test.go
index 75611e8..9ff1bea 100644
--- a/pluginrpc_test.go
+++ b/pluginrpc_test.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/procedure.go b/procedure.go
index 95ee321..a5a481b 100644
--- a/procedure.go
+++ b/procedure.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/procedure_test.go b/procedure_test.go
index d9ef4cd..a896178 100644
--- a/procedure_test.go
+++ b/procedure_test.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/proto.go b/proto.go
index fb58101..7e6b794 100644
--- a/proto.go
+++ b/proto.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/runner.go b/runner.go
index 739df48..201a723 100644
--- a/runner.go
+++ b/runner.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/server.go b/server.go
index e1f090d..fbb5697 100644
--- a/server.go
+++ b/server.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/server_registrar.go b/server_registrar.go
index 3dc17d9..9f76c38 100644
--- a/server_registrar.go
+++ b/server_registrar.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/spec.go b/spec.go
index f74d6c5..014c46a 100644
--- a/spec.go
+++ b/spec.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/spec_test.go b/spec_test.go
index a341ec2..1127e76 100644
--- a/spec_test.go
+++ b/spec_test.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
diff --git a/wire.go b/wire.go
index ce72243..85a8822 100644
--- a/wire.go
+++ b/wire.go
@@ -1,4 +1,4 @@
-// Copyright 2024 Buf Technologies, Inc.
+// Copyright 2024-2025 Buf Technologies, Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.