diff --git a/grpc.changes b/grpc.changes
index a138cc3..25ec4fc 100644
--- a/grpc.changes
+++ b/grpc.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Mon Jun 19 03:28:40 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 1.56.0
+  * core: Add support for vsock transport.
+  * EventEngine: Change TXT lookup result type to
+    std::vector<std::string>.
+  * C++/Authz: support customizable audit functionality for
+    authorization policy.
+
 -------------------------------------------------------------------
 Tue Jun 13 21:09:27 UTC 2023 - Dirk Müller <dmueller@suse.com>
 
diff --git a/grpc.spec b/grpc.spec
index f3f5a93..7f00dbb 100644
--- a/grpc.spec
+++ b/grpc.spec
@@ -16,11 +16,11 @@
 #
 
 
-%define lver 31
-%define lverp 1_54
+%define lver 33
+%define lverp 1_56
 %define src_install_dir /usr/src/%name
 Name:           grpc
-Version:        1.54.1
+Version:        1.56.0
 Release:        0
 Summary:        HTTP/2-based Remote Procedure Call implementation
 License:        Apache-2.0
@@ -35,11 +35,9 @@ BuildRequires:  gcc-c++
 BuildRequires:  opencensus-proto-source
 BuildRequires:  pkg-config
 BuildRequires:  zypper
-# https://protobuf.dev/support/migration/#compiler-22
-# remove upper cap when updating to >= 1.55.1
-BuildRequires:  (pkgconfig(protobuf) >= 3.8.0 with pkgconfig(protobuf) < 22)
-BuildRequires:  pkgconfig(libcares)
+BuildRequires:  pkgconfig(libcares) >= 1.13.0
 BuildRequires:  pkgconfig(openssl) >= 1.0.1
+BuildRequires:  pkgconfig(protobuf) >= 22
 BuildRequires:  pkgconfig(re2)
 BuildRequires:  pkgconfig(zlib)
 
diff --git a/v1.54.1.tar.gz b/v1.54.1.tar.gz
deleted file mode 100644
index c154f6c..0000000
--- a/v1.54.1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:79e3ff93f7fa3c8433e2165f2550fa14889fce147c15d9828531cbfc7ad11e01
-size 8901937
diff --git a/v1.56.0.tar.gz b/v1.56.0.tar.gz
new file mode 100644
index 0000000..ef2ae66
--- /dev/null
+++ b/v1.56.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e034992a0b464042021f6d440f2090acc2422c103a322b0844e3921ccea981dc
+size 9349605