diff --git a/Solution-to-version-building.patch b/Solution-to-version-building.patch
deleted file mode 100644
index 126a7c3..0000000
--- a/Solution-to-version-building.patch
+++ /dev/null
@@ -1,34 +0,0 @@
-From 071c00d2edd14ea573f8e4b2c1a827a26de01749 Mon Sep 17 00:00:00 2001
-From: Stefan Eissing <stefan@eissing.org>
-Date: Thu, 16 Feb 2023 14:45:12 +0100
-Subject: [PATCH] Workaround for building with older httpd versions that lack
- ap_thread_create().
-
----
- mod_http2/h2_workers.c | 5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/mod_http2/h2_workers.c b/mod_http2/h2_workers.c
-index e7e2039..192dbc0 100644
---- a/mod_http2/h2_workers.c
-+++ b/mod_http2/h2_workers.c
-#The source of this patch is https://github.com/icing/mod_h2/commit/071c00d2edd14ea573f8e4b2c1a827a26de01749
-#The reason for joining this patch is that the version released by the native community has not modified this content,
-#and the modified version has not been released.
-@@ -131,8 +131,13 @@ static apr_status_t activate_slot(h2_workers *workers)
-     apr_pool_tag(pool, "h2_worker_slot");
-     slot->pool = pool;
- 
-+#if defined(AP_HAS_THREAD_LOCAL)
-     rv = ap_thread_create(&slot->thread, workers->thread_attr,
-                           slot_run, slot, slot->pool);
-+#else
-+    rv = apr_thread_create(&slot->thread, workers->thread_attr,
-+                           slot_run, slot, slot->pool);
-+#endif
- 
- cleanup:
-     if (rv != APR_SUCCESS) {
--- 
-2.33.0
-
diff --git a/backport-fix-build-errors-without-PROXY_CANONENC_NOENCODEDSLA.patch b/backport-fix-build-errors-without-PROXY_CANONENC_NOENCODEDSLA.patch
new file mode 100644
index 0000000..20fed86
--- /dev/null
+++ b/backport-fix-build-errors-without-PROXY_CANONENC_NOENCODEDSLA.patch
@@ -0,0 +1,24 @@
+From 3e88d4b98a35634cd3eafa04e9ffb48b767e4d02 Mon Sep 17 00:00:00 2001
+From: eaglegai <eaglegai@163.com>
+Date: Fri, 21 Jul 2023 07:54:22 +0800
+Subject: [PATCH] fix compilation error when using
+ PROXY_CANONENC_NOENCODEDSLASHENCODING
+
+---
+ mod_http2/mod_proxy_http2.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/mod_http2/mod_proxy_http2.c b/mod_http2/mod_proxy_http2.c
+index 8c0905f9..6e24dde4 100644
+--- a/mod_http2/mod_proxy_http2.c
++++ b/mod_http2/mod_proxy_http2.c
+@@ -158,8 +158,8 @@ static int proxy_http2_canon(request_rec *r, char *url)
+             search = r->args;
+         }
+         else {
++#ifdef PROXY_CANONENC_NOENCODEDSLASHENCODING
+             core_dir_config *d = ap_get_core_module_config(r->per_dir_config);
+- #ifdef PROXY_CANONENC_NOENCODEDSLASHENCODING
+             int flags = d->allow_encoded_slashes && !d->decode_encoded_slashes ? PROXY_CANONENC_NOENCODEDSLASHENCODING : 0;
+ 
+             path = ap_proxy_canonenc_ex(r->pool, url, (int)strlen(url),
diff --git a/mod_http2-2.0.11.tar.gz b/mod_http2-2.0.11.tar.gz
deleted file mode 100644
index f639e90..0000000
Binary files a/mod_http2-2.0.11.tar.gz and /dev/null differ
diff --git a/mod_http2-2.0.20.tar.gz b/mod_http2-2.0.20.tar.gz
new file mode 100644
index 0000000..61c639e
Binary files /dev/null and b/mod_http2-2.0.20.tar.gz differ
diff --git a/mod_http2.spec b/mod_http2.spec
index 24cd5b5..03ae645 100644
--- a/mod_http2.spec
+++ b/mod_http2.spec
@@ -1,14 +1,14 @@
 %{!?_httpd_mmn: %global _httpd_mmn %(cat %{_includedir}/httpd/.mmn 2>/dev/null || echo 0-0)}
 
 Name:           mod_http2
-Version:        2.0.11
+Version:        2.0.20
 Release:        1
 Summary:        Support for the HTTP/2 transport layer
 License:        ASL 2.0
 URL:            https://icing.github.io/mod_h2/
 Source0:        https://github.com/icing/mod_h2/releases/download/v%{version}/%{name}-%{version}.tar.gz
 
-patch0:         Solution-to-version-building.patch
+patch0:         backport-fix-build-errors-without-PROXY_CANONENC_NOENCODEDSLA.patch
 
 BuildRequires:  make gcc pkgconfig httpd-devel >= 2.4.20 libnghttp2-devel >= 1.7.0 openssl-devel >= 1.0.2 autoconf libtool hostname
 Requires:       httpd-mmn = %{_httpd_mmn}
@@ -50,6 +50,12 @@ make check
 %exclude /etc/httpd/share/doc/*
 
 %changelog
+* Fri Jul 21 2023 gaihuiying <eaglegai@163.com> - 2.0.20-1
+- Type:requirement
+- ID:NA
+- SUG:NA
+- DESC: update mod_http2 to 2.0.20
+
 * Mon Feb 20 2023 li-long315 <lilong@kylinos.cn> - 2.0.11-1
 - Type:Update
 - ID:NA