diff --git a/postgresql-15.4.tar.bz2 b/postgresql-15.4.tar.bz2
deleted file mode 100644
index 8409bfb..0000000
--- a/postgresql-15.4.tar.bz2
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:baec5a4bdc4437336653b6cb5d9ed89be5bd5c0c58b94e0becee0a999e63c8f9
-size 22850355
diff --git a/postgresql-15.4.tar.bz2.sha256 b/postgresql-15.4.tar.bz2.sha256
deleted file mode 100644
index 0038621..0000000
--- a/postgresql-15.4.tar.bz2.sha256
+++ /dev/null
@@ -1 +0,0 @@
-baec5a4bdc4437336653b6cb5d9ed89be5bd5c0c58b94e0becee0a999e63c8f9  postgresql-15.4.tar.bz2
diff --git a/postgresql-15.5.tar.bz2 b/postgresql-15.5.tar.bz2
new file mode 100644
index 0000000..abd24db
--- /dev/null
+++ b/postgresql-15.5.tar.bz2
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:8f53aa95d78eb8e82536ea46b68187793b42bba3b4f65aa342f540b23c9b10a6
+size 23091780
diff --git a/postgresql-15.5.tar.bz2.sha256 b/postgresql-15.5.tar.bz2.sha256
new file mode 100644
index 0000000..bf99560
--- /dev/null
+++ b/postgresql-15.5.tar.bz2.sha256
@@ -0,0 +1 @@
+8f53aa95d78eb8e82536ea46b68187793b42bba3b4f65aa342f540b23c9b10a6  postgresql-15.5.tar.bz2
diff --git a/postgresql15.changes b/postgresql15.changes
index 7acbe8c..6bebbbc 100644
--- a/postgresql15.changes
+++ b/postgresql15.changes
@@ -1,3 +1,35 @@
+-------------------------------------------------------------------
+Wed Nov  8 14:26:51 UTC 2023 - Reinhard Max <max@suse.com>
+
+- Upgrade to 15.5:
+  * bsc#1216962, CVE-2023-5868: Fix handling of unknown-type
+    arguments in DISTINCT "any" aggregate functions. This error led
+    to a text-type value being interpreted as an unknown-type value
+    (that is, a zero-terminated string) at runtime. This could
+    result in disclosure of server memory following the text value.
+  * bsc#1216961, CVE-2023-5869: Detect integer overflow while
+    computing new array dimensions. When assigning new elements to
+    array subscripts that are outside the current array bounds, an
+    undetected integer overflow could occur in edge cases. Memory
+    stomps that are potentially exploitable for arbitrary code
+    execution are possible, and so is disclosure of server memory.
+  * bsc#1216960, CVE-2023-5870: Prevent the pg_signal_backend role
+    from signalling background workers and autovacuum processes.
+    The documentation says that pg_signal_backend cannot issue
+    signals to superuser-owned processes. It was able to signal
+    these background  processes, though, because they advertise a
+    role OID of zero. Treat that as indicating superuser ownership.
+    The security implications of cancelling one of these process
+    types are fairly small so far as the core code goes (we'll just
+    start another one), but extensions might add background workers
+    that are more vulnerable.
+    Also ensure that the is_superuser parameter is set correctly in
+    such processes. No specific security consequences are known for
+    that oversight, but it might be significant for some extensions.
+  * Add support for LLVM 16 and 17
+  * https://www.postgresql.org/about/news/2749
+  * https://www.postgresql.org/docs/15/release-15-5.html
+ 
 -------------------------------------------------------------------
 Tue Oct 31 10:57:13 UTC 2023 - Reinhard Max <max@suse.com>
 
diff --git a/postgresql15.spec b/postgresql15.spec
index 5e27072..721b328 100644
--- a/postgresql15.spec
+++ b/postgresql15.spec
@@ -16,11 +16,11 @@
 #
 
 
-%define pgversion 15.4
+%define pgversion 15.5
 %define pgmajor 15
 %define buildlibs 0
 %define tarversion %{pgversion}
-%define latest_supported_llvm_ver 15
+%define latest_supported_llvm_ver 17
 
 ### CUT HERE ###
 %define pgname postgresql%pgmajor
@@ -797,11 +797,9 @@ awk -v P=%buildroot '/^(%lang|[^%])/{print P $NF}' libpq.files libecpg.files | x
 
 %post -n %pgname-%devel
 /sbin/ldconfig
-/usr/share/postgresql/install-alternatives %pgmajor
 
 %postun -n %pgname-%devel
 /sbin/ldconfig
-/usr/share/postgresql/install-alternatives %pgmajor
 
 %if %{with server_devel}
 %post server-devel