diff --git a/zstd-1.5.4.tar.gz b/zstd-1.5.4.tar.gz
deleted file mode 100644
index 1c74667..0000000
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new file mode 100644
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diff --git a/zstd.changes b/zstd.changes
index 5c86cb6..0d28394 100644
--- a/zstd.changes
+++ b/zstd.changes
@@ -1,3 +1,39 @@
+-------------------------------------------------------------------
+Thu Apr 13 11:15:39 UTC 2023 - Dirk Müller <dmueller@suse.com>
+
+- update to 1.5.5:
+  * fix: fix rare corruption bug affecting the high compression
+    mode, reported by @danlark1
+  * perf: improve mid-level compression speed
+  * lib: deprecated bufferless block-level API (#3534) by
+    @terrelln
+  * cli: mmap large dictionaries to save memory, by
+    @daniellerozenblit
+  * cli: improve speed of --patch-from mode (~+50%) (#3545) by
+    @daniellerozenblit
+  * cli: improve i/o speed (~+10%) when processing lots of small
+    files (#3479) by @felixhandte
+  * cli: zstd no longer crashes when requested to write into
+    write-protected directory (#3541) by @felixhandte
+  * cli: fix decompression into block device using -o, reported
+    by @georgmu
+  * build: fix zstd CLI compiled with lzma support but not zlib
+    support (#3494) by @Hello71
+  * build: fix cmake does no longer require 3.18 as minimum
+    version (#3510) by @kou
+  * build: fix MSVC+ClangCL linking issue (#3569) by @tru
+  * build: fix zstd-dll, version of zstd CLI that links to the
+    dynamic library (#3496) by @yoniko
+  * build: fix MSVC warnings (#3495) by @embg
+  * doc: updated zstd specification to clarify corner cases, by
+    @Cyan4973
+  * doc: document how to create fat binaries for macos (#3568) by
+    @rickmark
+  * misc: improve seekable format ingestion speed (~+100%) for
+    very small chunk sizes (#3544) by @Cyan4973
+  * misc: tests/fullbench can benchmark multiple files (#3516) by
+    @dloidolt
+
 -------------------------------------------------------------------
 Wed Mar  8 09:28:33 UTC 2023 - Martin Pluskal <mpluskal@suse.com>
 
diff --git a/zstd.spec b/zstd.spec
index 92a8b71..efc112f 100644
--- a/zstd.spec
+++ b/zstd.spec
@@ -18,7 +18,7 @@
 
 %define libname libzstd1
 Name:           zstd
-Version:        1.5.4
+Version:        1.5.5
 Release:        0
 Summary:        Zstandard compression tools
 License:        BSD-3-Clause AND GPL-2.0-only