diff --git a/miniz-2.2.0-Fix-unaligned-pointer-access.patch b/miniz-2.2.0-Fix-unaligned-pointer-access.patch
new file mode 100644
index 0000000..63cd4e1
--- /dev/null
+++ b/miniz-2.2.0-Fix-unaligned-pointer-access.patch
@@ -0,0 +1,37 @@
+From f3906fd616c92168c63bb92accc72e79a24b0c04 Mon Sep 17 00:00:00 2001
+From: Martin <martin@urbackup.org>
+Date: Sun, 28 Nov 2021 18:37:55 +0100
+Subject: [PATCH] Fix unaligned pointer access
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Petr Písař: Ported to 2.2.0.
+
+Signed-off-by: Petr Písař <ppisar@redhat.com>
+---
+ miniz.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/miniz.c b/miniz.c
+index af27389..071367f 100644
+--- a/miniz.c
++++ b/miniz.c
+@@ -7118,10 +7118,10 @@ mz_bool mz_zip_writer_add_from_zip_reader(mz_zip_archive *pZip, mz_zip_archive *
+             if (pZip->m_pState->m_zip64)
+             {
+                 /* dest is zip64, so upgrade the data descriptor */
+-                const mz_uint32 *pSrc_descriptor = (const mz_uint32 *)((const mz_uint8 *)pBuf + (has_id ? sizeof(mz_uint32) : 0));
+-                const mz_uint32 src_crc32 = pSrc_descriptor[0];
+-                const mz_uint64 src_comp_size = pSrc_descriptor[1];
+-                const mz_uint64 src_uncomp_size = pSrc_descriptor[2];
++                const mz_uint8 *pSrc_descriptor = (const mz_uint8 *)pBuf + (has_id ? sizeof(mz_uint32) : 0);
++                const mz_uint32 src_crc32 = MZ_READ_LE32(pSrc_descriptor);
++                const mz_uint64 src_comp_size = MZ_READ_LE32(pSrc_descriptor + sizeof(mz_uint32));
++                const mz_uint64 src_uncomp_size = MZ_READ_LE32(pSrc_descriptor + 2*sizeof(mz_uint32));
+ 
+                 mz_write_le32((mz_uint8 *)pBuf, MZ_ZIP_DATA_DESCRIPTOR_ID);
+                 mz_write_le32((mz_uint8 *)pBuf + sizeof(mz_uint32) * 1, src_crc32);
+-- 
+2.34.1
+
diff --git a/miniz.spec b/miniz.spec
index f96a95f..3b16ac7 100644
--- a/miniz.spec
+++ b/miniz.spec
@@ -20,6 +20,8 @@ Patch0:     miniz-2.2.0-Examples-to-include-system-miniz.h.patch
 # Fix an unitialized memory in tinfl_decompress_mem_to_callback(), GH#197,
 # in upstream after 2.2.0.
 Patch1:     miniz-2.2.0-Fix-use-of-uninitialized-memory-in-tinfl_decompress_.patch
+# Fix an unaligned memory access, in upstream after 2.2.0.
+Patch2:     miniz-2.2.0-Fix-unaligned-pointer-access.patch
 BuildRequires:  coreutils
 # diffutils for cmp
 BuildRequires:  diffutils
@@ -59,6 +61,7 @@ Header files for developing applications that use the %{name} library.
 unzip -e '%{SOURCE0}'
 %patch0 -p1
 %patch1 -p1
+%patch2 -p1
 # Normalize end-of-lines
 sed -e 's/\r$//' ChangeLog.md > ChangeLog.md.new
 touch -r ChangeLog.md ChangeLog.md.new
@@ -137,6 +140,7 @@ install -m 0644 %{name}.h '%{buildroot}/%{_includedir}'
 %changelog
 * Mon Jan 24 2022 Petr Pisar <ppisar@redhat.com> - 2.2.0-2
 - Fix an unitialized memory in tinfl_decompress_mem_to_callback() (GH#197)
+- Fix an unaligned memory access
 
 * Wed Aug 11 2021 Petr Pisar <ppisar@redhat.com> - 2.2.0-1
 - 2.2.0 bump