diff --git a/.gitignore b/.gitignore
index 60c1064..14389e7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /clog
 /hivex-*.tar.gz
 /hivex-1.3.14.tar.gz.sig
+/hivex-1.3.15.tar.gz.sig
diff --git a/0001-generator-Use-Bytes-instead-of-String.patch b/0001-generator-Use-Bytes-instead-of-String.patch
deleted file mode 100644
index 9290873..0000000
--- a/0001-generator-Use-Bytes-instead-of-String.patch
+++ /dev/null
@@ -1,37 +0,0 @@
-From 87de49cebbf028ebb0f9950ab9e8fed97807c86e Mon Sep 17 00:00:00 2001
-From: "Richard W.M. Jones" <rjones@redhat.com>
-Date: Wed, 8 Nov 2017 18:04:15 +0000
-Subject: [PATCH 1/2] generator: Use Bytes instead of String.
-
----
- generator/generator.ml | 10 +++++-----
- 1 file changed, 5 insertions(+), 5 deletions(-)
-
-diff --git a/generator/generator.ml b/generator/generator.ml
-index 4125ae7..0401217 100755
---- a/generator/generator.ml
-+++ b/generator/generator.ml
-@@ -415,15 +415,15 @@ let failwithf fs = ksprintf failwith fs
- let unique = let i = ref 0 in fun () -> incr i; !i
- 
- let replace_char s c1 c2 =
--  let s2 = String.copy s in
-+  let s2 = Bytes.of_string s in
-   let r = ref false in
--  for i = 0 to String.length s2 - 1 do
--    if String.unsafe_get s2 i = c1 then (
--      String.unsafe_set s2 i c2;
-+  for i = 0 to String.length s - 1 do
-+    if String.unsafe_get s i = c1 then (
-+      Bytes.unsafe_set s2 i c2;
-       r := true
-     )
-   done;
--  if not !r then s else s2
-+  if not !r then s else Bytes.to_string s2
- 
- let isspace c =
-   c = ' '
--- 
-2.13.1
-
diff --git a/0002-ocaml-t-hivex_200_write.ml-Use-Bytes-instead-of-Stri.patch b/0002-ocaml-t-hivex_200_write.ml-Use-Bytes-instead-of-Stri.patch
deleted file mode 100644
index 6e4e057..0000000
--- a/0002-ocaml-t-hivex_200_write.ml-Use-Bytes-instead-of-Stri.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-From f45648c58c18f35507475363e12a33589fb6a5f2 Mon Sep 17 00:00:00 2001
-From: "Richard W.M. Jones" <rjones@redhat.com>
-Date: Wed, 8 Nov 2017 18:05:31 +0000
-Subject: [PATCH 2/2] ocaml/t/hivex_200_write.ml: Use Bytes instead of String.
-
----
- ocaml/t/hivex_200_write.ml | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/ocaml/t/hivex_200_write.ml b/ocaml/t/hivex_200_write.ml
-index f70deee..97d9597 100644
---- a/ocaml/t/hivex_200_write.ml
-+++ b/ocaml/t/hivex_200_write.ml
-@@ -55,14 +55,14 @@ let () =
-   and utf16le_of_ascii str =
-     let len = String.length str in
-     let len' = len * 2 + 2 in
--    let str' = String.create len' in
-+    let str' = Bytes.create len' in
-     for i = 0 to len-1 do
-       str'.[i*2] <- str.[i];
-       str'.[i*2+1] <- '\000'
-     done;
-     str'.[len'-2] <- '\000';
-     str'.[len'-1] <- '\000';
--    str'
-+    Bytes.to_string str'
-   in
-   iter 0 0 (Hivex.root h);
- 
--- 
-2.13.1
-
diff --git a/hivex.spec b/hivex.spec
index 03f243f..05ffe95 100644
--- a/hivex.spec
+++ b/hivex.spec
@@ -9,8 +9,8 @@
 %global verify_tarball_signature 1
 
 Name:           hivex
-Version:        1.3.14
-Release:        15%{?dist}
+Version:        1.3.15
+Release:        1%{?dist}
 Summary:        Read and write Windows Registry binary hive files
 
 License:        LGPLv2
@@ -26,10 +26,6 @@ Source1:        http://libguestfs.org/download/hivex/%{name}-%{version}.tar.gz.s
 Source2:       libguestfs.keyring
 %endif
 
-# Upstream patches to fix string mutability.
-Patch1:        0001-generator-Use-Bytes-instead-of-String.patch
-Patch2:        0002-ocaml-t-hivex_200_write.ml-Use-Bytes-instead-of-Stri.patch
-
 BuildRequires:  perl-interpreter
 BuildRequires:  perl-devel
 BuildRequires:  perl-generators
@@ -328,6 +324,9 @@ popd
 
 
 %changelog
+* Mon Feb 26 2018 Richard W.M. Jones <rjones@redhat.com> - 1.3.15-1
+- New upstream version 1.3.15.
+
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 1.3.14-15
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild
 
diff --git a/sources b/sources
index 446ad80..ab2607e 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (hivex-1.3.14.tar.gz) = dd7dd52dceda580179a815fc48a2a2c7e8f7234614beceb937fba7e317df17984e65453338160c4c467b70d7d4f9bd61b48aad3ca51e19bd5e4cfbca8ee3adb6
-SHA512 (hivex-1.3.14.tar.gz.sig) = 9e4d6dbc2b05a484deb1541edd7e11f4abbd815dd92c30d9049b4b0bb866202c5d8f575b0f7ff6da732e9b56efaffe9fe940042c4fd204b520c60a6c1a65dfa7
+SHA512 (hivex-1.3.15.tar.gz) = 7ce4fd6842c7545a41dc4c4268db5f0629d618a17f29a68dda6990a0dd4530cdf0e0c654f00104274c57e792aa4bcf712bcac1c76e2fd2dbce9aeae1e5751517
+SHA512 (hivex-1.3.15.tar.gz.sig) = 9cd0231f9d0293657aeec398c6b601800c7d61925340504c338a04339d7fa6d534f5b0cdf40bb3f94d7cd8fddeba29f049a9946163e5b0fc0186f07f48646802