diff --git a/.gitignore b/.gitignore
index 279f799..45a90c4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
-SOURCES/postgresql-13.5.tar.bz2
-/postgresql-13.5.tar.bz2
+SOURCES/postgresql-13.11.tar.bz2
+/postgresql-13.11.tar.bz2
diff --git a/libpq.spec b/libpq.spec
index 12ca08f..419e8fb 100644
--- a/libpq.spec
+++ b/libpq.spec
@@ -3,7 +3,7 @@
 
 Summary: PostgreSQL client library
 Name: libpq
-Version: %{majorversion}.5
+Version: %{majorversion}.11
 Release: 1%{?dist}
 
 License: PostgreSQL
@@ -130,6 +130,10 @@ find_lang_bins %name-devel.lst  pg_config
 
 
 %changelog
+* Wed Jun 21 2023 Masahiro Matsuya <mmatsuya@redhat.com> - 13.11-1
+- Rebase to 13.11
+  Resolves: #2171369
+
 * Mon Nov 29 2021 Marek Kulik <mkulik@redhat.com> - 13.5-1
 - Rebase to 13.5
   Resolves: #2023294
diff --git a/postgresql-13.5.tar.bz2.sha256 b/postgresql-13.5.tar.bz2.sha256
deleted file mode 100644
index 834e50e..0000000
--- a/postgresql-13.5.tar.bz2.sha256
+++ /dev/null
@@ -1 +0,0 @@
-9b81067a55edbaabc418aacef457dd8477642827499560b00615a6ea6c13f6b3  postgresql-13.5.tar.bz2
diff --git a/sources b/sources
index 5149d11..f666257 100644
--- a/sources
+++ b/sources
@@ -1 +1,2 @@
-SHA512 (postgresql-13.5.tar.bz2) = c76effbca8ee63be48fa3aeb39c7038221848fe83ca2afc4e0904ba8c6a50b89aa2ad37080d4e3be75e9bdc2d6ca6dfefcda334ef55a5e1a8954bb955ce905e5
+SHA512 (postgresql-13.11.tar.bz2) = 30c60de44f9a33470ea9cd0c9757de23341bf1f5b9f3e8ee2c5b303d6709d08e9aea0f6ae597e344f610a577809860c7921596fe63034b6c2e3fa488e3040987
+SHA512 (postgresql-13.11.tar.bz2.sha256) = 91330c6ada99e0aff7e5658574c56fb3de8e5642ac67c59f5a29ed5a6d829560f35a6cd3861e710d92ffa1589131a813ed5f949f1826978968be4c56c7711f21