diff --git a/blowfish/LICENSE-MIT b/blowfish/LICENSE-MIT
index 1da3a5f6..fe335449 100644
--- a/blowfish/LICENSE-MIT
+++ b/blowfish/LICENSE-MIT
@@ -1,5 +1,4 @@
-Copyright (c) 2006-2009 Graydon Hoare
-Copyright (c) 2009-2013 Mozilla Foundation
+Copyright (c) 2016-2024 The RustCrypto Project Developers
 
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and associated
diff --git a/camellia/LICENSE-MIT b/camellia/LICENSE-MIT
index f8eccd8c..394b496c 100644
--- a/camellia/LICENSE-MIT
+++ b/camellia/LICENSE-MIT
@@ -1,3 +1,4 @@
+Copyright (c) 2021-2024 The RustCrypto Project Developers
 Copyright (c) 2021 Shun Sakai
 
 Permission is hereby granted, free of charge, to any
diff --git a/cast5/LICENSE-MIT b/cast5/LICENSE-MIT
index 4ddf226a..3cb7f1b3 100644
--- a/cast5/LICENSE-MIT
+++ b/cast5/LICENSE-MIT
@@ -1,5 +1,5 @@
+Copyright (c) 2018-2024 The RustCrypto Project Developers
 Copyright (c) 2018-2019 Friedel Ziegelmayer
-Copyright (c) 2018-2019 The RustCrypto Project Developers
 
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and associated
diff --git a/serpent/LICENSE-MIT b/serpent/LICENSE-MIT
index 6e0aa2fe..ba8a0d39 100644
--- a/serpent/LICENSE-MIT
+++ b/serpent/LICENSE-MIT
@@ -1,3 +1,4 @@
+Copyright (c) 2019-2024 The RustCrypto Project Developers
 Copyright (c) 2019 Jonathan Serra
 
 Permission is hereby granted, free of charge, to any
diff --git a/sm4/LICENSE-MIT b/sm4/LICENSE-MIT
index 66cf7556..05ad2e61 100644
--- a/sm4/LICENSE-MIT
+++ b/sm4/LICENSE-MIT
@@ -1,6 +1,4 @@
-Copyright (c) 2006-2009 Graydon Hoare
-Copyright (c) 2009-2013 Mozilla Foundation
-Copyright (c) 2016 Artyom Pavlov
+Copyright (c) 2020-2024 The RustCrypto Project Developers
 
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and associated
diff --git a/speck/LICENSE-MIT b/speck/LICENSE-MIT
index 66cf7556..3b73c41c 100644
--- a/speck/LICENSE-MIT
+++ b/speck/LICENSE-MIT
@@ -1,6 +1,4 @@
-Copyright (c) 2006-2009 Graydon Hoare
-Copyright (c) 2009-2013 Mozilla Foundation
-Copyright (c) 2016 Artyom Pavlov
+Copyright (c) 2023-2024 The RustCrypto Project Developers
 
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and associated
diff --git a/threefish/LICENSE-MIT b/threefish/LICENSE-MIT
index fdc21b08..9c1bd72c 100644
--- a/threefish/LICENSE-MIT
+++ b/threefish/LICENSE-MIT
@@ -1,3 +1,4 @@
+Copyright (c) 2016-2024 The RustCrypto Project Developers
 Copyright (c) 2016-2017 Christian Barcenas, Artyom Pavlov
 
 Permission is hereby granted, free of charge, to any
diff --git a/twofish/LICENSE-MIT b/twofish/LICENSE-MIT
index 6b640d0b..f05fcc6f 100644
--- a/twofish/LICENSE-MIT
+++ b/twofish/LICENSE-MIT
@@ -1,3 +1,4 @@
+Copyright (c) 2017-2024 The RustCrypto Project Developers
 Copyright (c) 2017 Alexander Krotov
 
 Permission is hereby granted, free of charge, to any
diff --git a/xtea/LICENSE-MIT b/xtea/LICENSE-MIT
index 95e7d3c6..327d4ec3 100644
--- a/xtea/LICENSE-MIT
+++ b/xtea/LICENSE-MIT
@@ -1,3 +1,4 @@
+Copyright (c) 2024 The RustCrypto Project Developers
 Copyright (c) 2024 Kevin Ludwig
 
 Permission is hereby granted, free of charge, to any