diff --git a/.ottdrev-vc b/.ottdrev-vc
index d9e0de456d..6abbcf921d 100644
--- a/.ottdrev-vc
+++ b/.ottdrev-vc
@@ -1,2 +1,2 @@
-jgrpp-0.55.0	20230904	0	f51d51de407f03a1a9bd01f782c59503398de45c	1	0	2023
-fe3afebcd0d7d5517b7e99df9dc27b3137c2b7828f98312c120c7b281511b483  -
+jgrpp-0.55.1	20230905	0	a48a3ac07bdcfe499e3fc9181b60583874bd4a17	1	0	2023
+fedc67d45715bc84c4d01bb2574074f9957463b4e51e71d6ca498260e1662921  -
diff --git a/README.md b/README.md
index cdb93b985c..a730f5ef45 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-## JGR's Patchpack version 0.55.0
+## JGR's Patchpack version 0.55.1
 
 This is a collection of patches applied to [OpenTTD](http://www.openttd.org/)
 
diff --git a/jgrpp-changelog.md b/jgrpp-changelog.md
index b8ade30fd4..c27616d6d1 100644
--- a/jgrpp-changelog.md
+++ b/jgrpp-changelog.md
@@ -2,6 +2,10 @@
 
 * * *
 
+### v0.55.1 (2023-09-05)
+* Fix various failures which could occur when running on Windows.
+* Fix autorenew/autoreplace not charging for the cost of a new ship, when replacing a multi-cargo ship.
+
 ### v0.55.0 (2023-09-04)
 * Fix incorrect NewGRF industry texts in some cases.
 * Fix inaccurate waiting cargo total in station window when using cargodist.