diff --git a/handler/endorsement.go b/handler/endorsement.go
index 01e2b9a1..79a9ec9b 100644
--- a/handler/endorsement.go
+++ b/handler/endorsement.go
@@ -1,4 +1,4 @@
-// Copyright 2023 Contributors to the Veraison project.
+// Copyright 2024 Contributors to the Veraison project.
 // SPDX-License-Identifier: Apache-2.0
 package handler
 
diff --git a/handler/endorsement_rpc.go b/handler/endorsement_rpc.go
index 3b014681..97766368 100644
--- a/handler/endorsement_rpc.go
+++ b/handler/endorsement_rpc.go
@@ -1,4 +1,4 @@
-// Copyright 2022-2023 Contributors to the Veraison project.
+// Copyright 2022-2024 Contributors to the Veraison project.
 // SPDX-License-Identifier: Apache-2.0
 package handler
 
diff --git a/handler/error_test.go b/handler/error_test.go
index 8c91cf51..79ccc0bb 100644
--- a/handler/error_test.go
+++ b/handler/error_test.go
@@ -1,4 +1,4 @@
-// Copyright 2023 Contributors to the Veraison project.
+// Copyright 2024 Contributors to the Veraison project.
 // SPDX-License-Identifier: Apache-2.0
 package handler
 
diff --git a/handler/idecoder_manager.go b/handler/idecoder_manager.go
index ff24adce..534d5010 100644
--- a/handler/idecoder_manager.go
+++ b/handler/idecoder_manager.go
@@ -1,4 +1,4 @@
-// Copyright 2022-2023 Contributors to the Veraison project.
+// Copyright 2022-2024 Contributors to the Veraison project.
 // SPDX-License-Identifier: Apache-2.0
 package handler
 
diff --git a/handler/iendorsementhandler.go b/handler/iendorsementhandler.go
index 839ef5ac..cad5ee6f 100644
--- a/handler/iendorsementhandler.go
+++ b/handler/iendorsementhandler.go
@@ -1,4 +1,4 @@
-// Copyright 2022-2023 Contributors to the Veraison project.
+// Copyright 2022-2024 Contributors to the Veraison project.
 // SPDX-License-Identifier: Apache-2.0
 package handler
 
diff --git a/handler/plugin.go b/handler/plugin.go
index 7c76876d..ba515958 100644
--- a/handler/plugin.go
+++ b/handler/plugin.go
@@ -1,4 +1,4 @@
-// Copyright 2022-2023 Contributors to the Veraison project.
+// Copyright 2022-2024 Contributors to the Veraison project.
 // SPDX-License-Identifier: Apache-2.0
 package handler
 
diff --git a/handler/result.go b/handler/result.go
index 23836215..4dfc38c9 100644
--- a/handler/result.go
+++ b/handler/result.go
@@ -1,4 +1,4 @@
-// Copyright 2023 Contributors to the Veraison project.
+// Copyright 2024 Contributors to the Veraison project.
 // SPDX-License-Identifier: Apache-2.0
 package handler
 
diff --git a/proto/appraisal_context.pb.go b/proto/appraisal_context.pb.go
index 976d7309..868a0ec7 100644
--- a/proto/appraisal_context.pb.go
+++ b/proto/appraisal_context.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.6
+// 	protoc        v3.21.12
 // source: appraisal_context.proto
 
 package proto
diff --git a/proto/evidence.pb.go b/proto/evidence.pb.go
index 45fd89ad..3ff8b2c1 100644
--- a/proto/evidence.pb.go
+++ b/proto/evidence.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.6
+// 	protoc        v3.21.12
 // source: evidence.proto
 
 package proto
diff --git a/proto/state.pb.go b/proto/state.pb.go
index c9d74b53..af9535fa 100644
--- a/proto/state.pb.go
+++ b/proto/state.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.6
+// 	protoc        v3.21.12
 // source: state.proto
 
 package proto
diff --git a/proto/token.pb.go b/proto/token.pb.go
index 0bdc1068..e814a950 100644
--- a/proto/token.pb.go
+++ b/proto/token.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.6
+// 	protoc        v3.21.12
 // source: token.proto
 
 package proto
diff --git a/proto/vts.pb.go b/proto/vts.pb.go
index 613fc7d3..36e16e8c 100644
--- a/proto/vts.pb.go
+++ b/proto/vts.pb.go
@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.21.6
+// 	protoc        v3.21.12
 // source: vts.proto
 
 package proto