diff --git a/Src/libCZI/Doc/version-history.markdown b/Src/libCZI/Doc/version-history.markdown
index 5996d5c5..0926eb83 100644
--- a/Src/libCZI/Doc/version-history.markdown
+++ b/Src/libCZI/Doc/version-history.markdown
@@ -9,4 +9,5 @@ version history                 {#version_history}
  0.54.0             | [71](https://github.com/ZEISS/libczi/pull/71)        | introduce 'streamsLib', add curl-based stream class
  0.54.2             | [74](https://github.com/ZEISS/libczi/pull/74)        | minor bug fix
  0.54.3             | [79](https://github.com/ZEISS/libczi/pull/79)        | add option _kCurlHttp_FollowLocation_ to follow HTTP redirects tp curl_http_inputstream
- 0.55.0             | [78](https://github.com/ZEISS/libczi/pull/78)        | optimization: for multi-tile-composition, check relevant tiles for visibility before loading them (and do not load/decode non-visible tiles)
\ No newline at end of file
+ 0.55.0             | [78](https://github.com/ZEISS/libczi/pull/78)        | optimization: for multi-tile-composition, check relevant tiles for visibility before loading them (and do not load/decode non-visible tiles)
+ 0.55.1             | [80](https://github.com/ZEISS/libczi/pull/80)        | bugfix for above optimization
\ No newline at end of file