diff --git a/fix-test-argp.patch b/fix-test-argp.patch
deleted file mode 100644
index 6454445..0000000
--- a/fix-test-argp.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -Nur zchunk-1.1.9/meson.build new/meson.build
---- zchunk-1.1.9/meson.build	2020-12-30 23:47:08.000000000 +0100
-+++ new/meson.build	2021-04-27 00:18:38.152514197 +0200
-@@ -28,7 +28,7 @@
- 
- curl_dep = dependency('libcurl')
- 
--if build_machine.system() == 'darwin' or build_machine.system() == 'freebsd' or not cc.links('#include <argp.h>\nstatic error_t parse_opt (int key, char *arg, struct argp_state *state) { argp_usage(state); }; void main() {}')
-+if build_machine.system() == 'darwin' or build_machine.system() == 'freebsd' or not cc.links('#include <argp.h>\nstatic error_t parse_opt (int key, char *arg, struct argp_state *state) { argp_usage(state); return 0; }; void main() {}')
-     argplib = cc.find_library('argp')
- else
-     argplib = dependency('', required : false)
diff --git a/zchunk-1.1.11.tar.gz b/zchunk-1.1.11.tar.gz
new file mode 100644
index 0000000..d871d38
--- /dev/null
+++ b/zchunk-1.1.11.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:febbbfb1de7720641e7e36cef6ae0ce8ed18684e3faf539f703a5497f830267f
+size 1449758
diff --git a/zchunk-1.1.9.tar.gz b/zchunk-1.1.9.tar.gz
deleted file mode 100644
index e74dc1e..0000000
--- a/zchunk-1.1.9.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:9e9bac8bb92e86eba50dc7fcf1f79e7835534c3aa15274355ffd84a8bcc03f91
-size 1449219
diff --git a/zchunk.changes b/zchunk.changes
index 4cc95ff..e8a05d5 100644
--- a/zchunk.changes
+++ b/zchunk.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Mon May  3 16:19:29 UTC 2021 - Ferdinand Thiessen <rpm@fthiessen.de>
+
+- Update to version 1.1.11
+  * Fix memory leak of zck->prep_digest
+  * Fix argp detection
+  * Handle certain rare web servers that don't start with \r\n
+- Drop upstream merged fix-test-argp.patch
+
 -------------------------------------------------------------------
 Mon Apr 26 21:13:02 UTC 2021 - Ferdinand Thiessen <rpm@fthiessen.de>
 
diff --git a/zchunk.spec b/zchunk.spec
index 7704f04..91b5516 100644
--- a/zchunk.spec
+++ b/zchunk.spec
@@ -22,15 +22,13 @@
 %global devname libzck-devel
 
 Name:           zchunk
-Version:        1.1.9
+Version:        1.1.11
 Release:        0
 Summary:        Compressed file format that allows easy deltas
 License:        BSD-2-Clause AND MIT
 Group:          Productivity/Archiving/Compression
 URL:            https://github.com/zchunk/zchunk
 Source0:        %{url}/archive/%{version}/%{name}-%{version}.tar.gz
-# PATCH-FIX-UPSTREAM https://github.com/zchunk/zchunk/pull/39
-Patch0:         fix-test-argp.patch
 BuildRequires:  meson >= 0.44.0
 BuildRequires:  pkgconfig
 BuildRequires:  pkgconfig(libcurl)
@@ -94,7 +92,7 @@ install -p contrib/gen_xml_dictionary %{buildroot}%{_libexecdir}/zck_gen_xml_dic
 %check
 %meson_test
 
-%post -n %{libname} -p /sbin/ldconfig
+%post -n   %{libname} -p /sbin/ldconfig
 %postun -n %{libname} -p /sbin/ldconfig
 
 %files