diff --git a/143.patch b/143.patch
new file mode 100644
index 0000000..846e2ff
--- /dev/null
+++ b/143.patch
@@ -0,0 +1,108 @@
+From 6311624a60bfa7249f13921b9fd8d32d5b9a20f8 Mon Sep 17 00:00:00 2001
+From: Tulio Magno Quites Machado Filho <tuliom@redhat.com>
+Date: Wed, 6 Dec 2023 19:12:13 -0300
+Subject: [PATCH] Adapt alg_comp test to different zlib (#142)
+
+Different zlib implementations such as zlib-ng, QATzip and libnxz
+provide API and ABI compatibility with madler's zlib. However, they do
+not guarantee identical output.
+This makes it very hard to compare the length or binary output of a
+compressed stream.
+
+Instead of doing that, this patch aims to compare the input against the
+output of a compression and decompression cycle.
+
+Fixes #142.
+---
+ tests/alg_comp.c | 55 ++++++++++++++++++++++++++++--------------------
+ 1 file changed, 32 insertions(+), 23 deletions(-)
+
+diff --git a/tests/alg_comp.c b/tests/alg_comp.c
+index c9bef752..fcd305c1 100644
+--- a/tests/alg_comp.c
++++ b/tests/alg_comp.c
+@@ -41,22 +41,23 @@ const struct {
+     {}
+ };
+ 
+-typedef typeof(((jose_hook_alg_t *) NULL)->comp.inf) comp_func_t;
+-
+ static void
+-test(const jose_hook_alg_t *a, comp_func_t func, bool iter,
+-     const uint8_t *i, size_t il,
+-     const uint8_t *o, size_t ol)
++test(const jose_hook_alg_t *a, bool iter,
++     const uint8_t *i, size_t il)
+ {
+     jose_io_auto_t *b = NULL;
++    jose_io_auto_t *c = NULL;
+     jose_io_auto_t *z = NULL;
+-    void *buf = NULL;
+-    size_t len = 0;
++    void *buf1 = NULL;
++    void *buf2 = NULL;
++    size_t blen = 0;
++    size_t clen = 0;
+ 
+-    b = jose_io_malloc(NULL, &buf, &len);
++    /* Test compression first. */
++    b = jose_io_malloc(NULL, &buf1, &blen);
+     assert(b);
+ 
+-    z = func(a, NULL, b);
++    z = a->comp.def(a, NULL, b);
+     assert(z);
+ 
+     if (iter) {
+@@ -68,8 +69,26 @@ test(const jose_hook_alg_t *a, comp_func_t func, bool iter,
+ 
+     assert(z->done(z));
+ 
+-    assert(len == ol);
+-    assert(memcmp(buf, o, ol) == 0);
++    /* Test decompression now. */
++    c = jose_io_malloc(NULL, &buf2, &clen);
++    assert(b);
++
++    z = a->comp.inf(a, NULL, c);
++    assert(z);
++
++    if (iter) {
++        uint8_t *m = buf1;
++        for (size_t j = 0; j < blen; j++)
++            assert(z->feed(z, &m[j], 1));
++    } else {
++        assert(z->feed(z, buf1, blen));
++    }
++
++    assert(z->done(z));
++
++    /* Compare the final output with the original input. */
++    assert(clen == il);
++    assert(memcmp(buf2, i, il) == 0);
+ }
+ 
+ int
+@@ -93,20 +112,10 @@ main(int argc, char *argv[])
+         assert(jose_b64_dec_buf(tests[i].def, strlen(tests[i].def),
+                                 tst_def, sizeof(tst_def)) == sizeof(tst_def));
+ 
+-        test(a, a->comp.def, false,
+-             tst_inf, sizeof(tst_inf),
+-             tst_def, sizeof(tst_def));
+-
+-        test(a, a->comp.inf, false,
+-             tst_def, sizeof(tst_def),
++        test(a, false,
+              tst_inf, sizeof(tst_inf));
+ 
+-        test(a, a->comp.def, true,
+-             tst_inf, sizeof(tst_inf),
+-             tst_def, sizeof(tst_def));
+-
+-        test(a, a->comp.inf, true,
+-             tst_def, sizeof(tst_def),
++        test(a, true,
+              tst_inf, sizeof(tst_inf));
+     }
+ 
diff --git a/jose.spec b/jose.spec
index 30a28d7..d1b6146 100644
--- a/jose.spec
+++ b/jose.spec
@@ -1,12 +1,15 @@
 Name:           jose
 Version:        11
-Release:        10%{?dist}
+Release:        11%{?dist}
 Summary:        Tools for JSON Object Signing and Encryption (JOSE)
 
 License:        Apache-2.0
 URL:            https://github.com/latchset/%{name}
 Source0:        https://github.com/latchset/%{name}/releases/download/v%{version}/%{name}-%{version}.tar.xz
 
+# Backport from https://github.com/latchset/jose/pull/143
+Patch:          143.patch
+
 BuildRequires:  gcc
 BuildRequires:  pkgconfig
 BuildRequires:  jansson-devel >= 2.10
@@ -81,6 +84,9 @@ rm -rf %{buildroot}/%{_libdir}/lib%{name}.la
 %{_mandir}/man3/jose*.3*
 
 %changelog
+* Tue Jan 30 2024 Tulio Magno Quites Machado Filho <tuliom@redhat.com> - 11-11
+- Fix test when using zlib-ng
+
 * Wed Jan 24 2024 Fedora Release Engineering <releng@fedoraproject.org> - 11-10
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild