diff --git a/gnu/packages/haskell.scm b/gnu/packages/haskell.scm
index cd0fdd22fc..2b8525d923 100644
--- a/gnu/packages/haskell.scm
+++ b/gnu/packages/haskell.scm
@@ -3974,7 +3974,7 @@ work, but is substantially simpler and faster.")
 (define-public ghc-base64-bytestring
   (package
     (name "ghc-base64-bytestring")
-    (version "1.0.0.1")
+    (version "1.0.0.2")
     (source
      (origin
        (method url-fetch)
@@ -3983,8 +3983,7 @@ work, but is substantially simpler and faster.")
              version
              ".tar.gz"))
        (sha256
-        (base32
-         "0l1v4ddjdsgi9nqzyzcxxj76rwar3lzx8gmwf2r54bqan3san9db"))))
+        (base32 "13305brzlac24pifiqd5a2z10c6k6amhpdy9cc0z5ryrkgnm8dhr"))))
     (build-system haskell-build-system)
     (arguments `(#:tests? #f))         ; FIXME: testing libraries are missing.
     (home-page "https://github.com/bos/base64-bytestring")