diff --git a/core/src/main/java/org/bitcoinj/core/Address.java b/core/src/main/java/org/bitcoinj/core/Address.java
index 82d2dde0..9437a041 100644
--- a/core/src/main/java/org/bitcoinj/core/Address.java
+++ b/core/src/main/java/org/bitcoinj/core/Address.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Andreas Schildbach
+ * Copyright by the original author or authors.
  *
  * 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/core/src/main/java/org/bitcoinj/core/SegwitAddress.java b/core/src/main/java/org/bitcoinj/core/SegwitAddress.java
index 4aa62628..96de6c56 100644
--- a/core/src/main/java/org/bitcoinj/core/SegwitAddress.java
+++ b/core/src/main/java/org/bitcoinj/core/SegwitAddress.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Andreas Schildbach
+ * Copyright by the original author or authors.
  *
  * 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/core/src/main/java/org/bitcoinj/core/SignatureDecodeException.java b/core/src/main/java/org/bitcoinj/core/SignatureDecodeException.java
index 130d5aa1..40a5dab6 100644
--- a/core/src/main/java/org/bitcoinj/core/SignatureDecodeException.java
+++ b/core/src/main/java/org/bitcoinj/core/SignatureDecodeException.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Andreas Schildbach
+ * Copyright by the original author or authors.
  *
  * 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/core/src/test/java/org/bitcoinj/core/SegwitAddressTest.java b/core/src/test/java/org/bitcoinj/core/SegwitAddressTest.java
index 315a2f5e..a0120768 100644
--- a/core/src/test/java/org/bitcoinj/core/SegwitAddressTest.java
+++ b/core/src/test/java/org/bitcoinj/core/SegwitAddressTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2018 Andreas Schildbach
+ * Copyright by the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.