diff --git a/nghttp2.spec b/nghttp2.spec
index f89efc4..fb7abae 100644
--- a/nghttp2.spec
+++ b/nghttp2.spec
@@ -1,6 +1,6 @@
 Summary: Experimental HTTP/2 client, server and proxy
 Name: nghttp2
-Version: 1.54.0
+Version: 1.55.0
 Release: 1%{?dist}
 License: MIT
 URL: https://nghttp2.org/
@@ -120,6 +120,9 @@ export "LD_LIBRARY_PATH=$RPM_BUILD_ROOT%{_libdir}:$LD_LIBRARY_PATH"
 
 
 %changelog
+* Thu Jul 13 2023 Jan Macku <jamacku@redhat.com> 1.55.0-1
+- update to the latest upstream release
+
 * Thu Jun 08 2023 Jan Macku <jamacku@redhat.com> 1.54.0-1
 - update to the latest upstream release
 
diff --git a/sources b/sources
index 27c7b33..5f339da 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (nghttp2-1.54.0.tar.xz.asc) = 8854f30ef1e294ab65e052026be9781c2df69f9e77fb68dc2fdb2008e9e23e3e5b176b5e2481ad44e35e40591c220696fb47d7304aaf060f56668e9c3e102313
-SHA512 (nghttp2-1.54.0.tar.xz) = b56a599f8be31e0518902a1dde50c48b599f57a24b382b2fea1ba8d855d1410b8e97b7dcd9620e3b29c308b7cb04bcd9d8db7034978419a90dbe7f84547afc43
+SHA512 (nghttp2-1.55.0.tar.xz) = ccb13dd3067c5937d9b73132045788862b9cead6dc57611b1a9c55b6d1eea2c70c4d155e1a7b94ca6c6f31f4b75e45d0af680a50a061d6aab68ca75492dad640
+SHA512 (nghttp2-1.55.0.tar.xz.asc) = 189963056d2129a957332799d30c58ac6005b79d509450bf86def19c2c46004ab2bb013075c030aa9825ead6ea8b8edc725cacee585613648733cc8b6e999399