diff --git a/bin/build-site.sh b/bin/build-site.sh
index 5cb0d13a3..ba2fd80ec 100755
--- a/bin/build-site.sh
+++ b/bin/build-site.sh
@@ -5,7 +5,7 @@
 # Default to the current version number for building the plugin library
 
 if [  -z "$TW5_BUILD_VERSION" ]; then
-    TW5_BUILD_VERSION=v5.1.20
+    TW5_BUILD_VERSION=v5.1.21
 fi
 
 echo "Using TW5_BUILD_VERSION as [$TW5_BUILD_VERSION]"
diff --git a/core/wiki/config/OfficialPluginLibrary.tid b/core/wiki/config/OfficialPluginLibrary.tid
index f2ed50c1f..39717937d 100644
--- a/core/wiki/config/OfficialPluginLibrary.tid
+++ b/core/wiki/config/OfficialPluginLibrary.tid
@@ -1,6 +1,6 @@
 title: $:/config/OfficialPluginLibrary
 tags: $:/tags/PluginLibrary
-url: https://tiddlywiki.com/library/v5.1.21/index.html
+url: https://tiddlywiki.com/library/v5.1.22/index.html
 caption: {{$:/language/OfficialPluginLibrary}}
 
 {{$:/language/OfficialPluginLibrary/Hint}}
diff --git a/editions/dev/tiddlers/build/Releasing a new version of TiddlyWiki.tid b/editions/dev/tiddlers/build/Releasing a new version of TiddlyWiki.tid
index 5ceccb6ba..1bfabebd2 100644
--- a/editions/dev/tiddlers/build/Releasing a new version of TiddlyWiki.tid	
+++ b/editions/dev/tiddlers/build/Releasing a new version of TiddlyWiki.tid	
@@ -42,5 +42,4 @@ type: text/vnd.tiddlywiki
 # Adjust version number in [[$:/config/OfficialPluginLibrary]] (both in `editions/tw5.com` and `editions/prerelease/tiddlers/system`) and [[$:/config/LocalPluginLibrary]]
 # Adjust new release banner
 # Create the release note for the new release
-# Adjust version number in https://github.com/Jermolene/build.jermolene.github.io in `prerelease-bld.sh`, `bld.sh` and `make-library-bld.sh`
 # Commit changes to ''master'' and push to ~GitHub
diff --git a/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid b/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid
index 6b3ecb0f9..d32a95711 100644
--- a/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid
+++ b/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid
@@ -1,6 +1,6 @@
 title: $:/config/LocalPluginLibrary
 tags: $:/tags/PluginLibrary
-url: http://127.0.0.1:8080/prerelease/library/v5.1.21/index.html
+url: http://127.0.0.1:8080/prerelease/library/v5.1.22/index.html
 caption: {{$:/language/OfficialPluginLibrary}} (Prerelease Local)
 
 A locally installed version of the official ~TiddlyWiki plugin library at tiddlywiki.com for testing and debugging. //Requires a local web server to share the library//
diff --git a/editions/prerelease/tiddlers/system/PrereleaseOfficialPluginLibrary.tid b/editions/prerelease/tiddlers/system/PrereleaseOfficialPluginLibrary.tid
index 63029fddc..9b2794ef0 100644
--- a/editions/prerelease/tiddlers/system/PrereleaseOfficialPluginLibrary.tid
+++ b/editions/prerelease/tiddlers/system/PrereleaseOfficialPluginLibrary.tid
@@ -1,6 +1,6 @@
 title: $:/config/OfficialPluginLibrary
 tags: $:/tags/PluginLibrary
-url: https://tiddlywiki.com/prerelease/library/v5.1.21/index.html
+url: https://tiddlywiki.com/prerelease/library/v5.1.22/index.html
 caption: {{$:/language/OfficialPluginLibrary}} (Prerelease)
 
 The prerelease version of the official ~TiddlyWiki plugin library at tiddlywiki.com. Plugins, themes and language packs are maintained by the core team.
diff --git a/editions/tw5.com/tiddlers/images/New Release Banner.jpg b/editions/tw5.com/tiddlers/images/New Release Banner.jpg
index 9ce972875..c9a4d7e17 100644
Binary files a/editions/tw5.com/tiddlers/images/New Release Banner.jpg and b/editions/tw5.com/tiddlers/images/New Release Banner.jpg differ
diff --git a/package.json b/package.json
index 25574ec31..2fc00f9ee 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "tiddlywiki",
   "preferGlobal": "true",
-  "version": "5.1.21",
+  "version": "5.1.22-prerelease",
   "author": "Jeremy Ruston <jeremy@jermolene.com>",
   "description": "a non-linear personal web notebook",
   "contributors": [