diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for sha1
 
+## 0.1.0.2 -- 2020-03-09
+
+* Add proper attribution to license file.
+
 ## 0.1.0.1 -- 2020-03-09
 
 * Add `sha1.h` to `extra-source-files`.
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,6 @@
-Copyright 2020 Andrew Martin
+Copyright (c) 2010-2014 Vincent Hanquez <vincent@snarc.org>
+              2016      Herbert Valerio Riedel <hvr@gnu.org>
+              2020      Andrew Martin <andrew.thaddeus@gmail.com>
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions
diff --git a/sha1.cabal b/sha1.cabal
--- a/sha1.cabal
+++ b/sha1.cabal
@@ -1,6 +1,6 @@
 cabal-version: 2.2
 name: sha1
-version: 0.1.0.1
+version: 0.1.0.2
 synopsis: SHA-1 Hash
 description:
   This library is a copy of cryptohash-sha1 that works on GC-managed