diff --git a/bin/build-site.sh b/bin/build-site.sh
index a54d16452e..0618e1bb10 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=v5.3.0
+    TW5_BUILD_VERSION=v5.3.1
 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 38e37d9837..4aa985b878 100644
--- a/core/wiki/config/OfficialPluginLibrary.tid
+++ b/core/wiki/config/OfficialPluginLibrary.tid
@@ -1,6 +1,6 @@
 title: $:/config/OfficialPluginLibrary
 tags: $:/tags/PluginLibrary
-url: https://tiddlywiki.com/library/v5.3.0/index.html
+url: https://tiddlywiki.com/library/v5.3.1/index.html
 caption: {{$:/language/OfficialPluginLibrary}}
 
 {{$:/language/OfficialPluginLibrary/Hint}}
diff --git a/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid b/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid
index d8f6416027..a42bdc7745 100644
--- a/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid
+++ b/editions/prerelease/tiddlers/system/PrereleaseLocalPluginLibrary.tid
@@ -1,6 +1,6 @@
 title: $:/config/LocalPluginLibrary
 tags: $:/tags/PluginLibrary
-url: http://127.0.0.1:8080/prerelease/library/v5.2.2/index.html
+url: http://127.0.0.1:8080/prerelease/library/v5.3.1/index.html
 caption: {{$:/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 9da4f8b6f5..555b81ab63 100644
--- a/editions/prerelease/tiddlers/system/PrereleaseOfficialPluginLibrary.tid
+++ b/editions/prerelease/tiddlers/system/PrereleaseOfficialPluginLibrary.tid
@@ -1,6 +1,6 @@
 title: $:/config/OfficialPluginLibrary
 tags: $:/tags/PluginLibrary
-url: https://tiddlywiki.com/prerelease/library/v5.3.0/index.html
+url: https://tiddlywiki.com/prerelease/library/v5.3.1/index.html
 caption: {{$:/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
deleted file mode 100644
index be511ea29d..0000000000
Binary files a/editions/tw5.com/tiddlers/images/New Release Banner.jpg and /dev/null differ
diff --git a/editions/tw5.com/tiddlers/images/New Release Banner.png b/editions/tw5.com/tiddlers/images/New Release Banner.png
new file mode 100644
index 0000000000..17925343ef
Binary files /dev/null and b/editions/tw5.com/tiddlers/images/New Release Banner.png differ
diff --git a/editions/tw5.com/tiddlers/images/New Release Banner.jpg.meta b/editions/tw5.com/tiddlers/images/New Release Banner.png.meta
similarity index 70%
rename from editions/tw5.com/tiddlers/images/New Release Banner.jpg.meta
rename to editions/tw5.com/tiddlers/images/New Release Banner.png.meta
index 4a4b7b8c7f..e5fc745fe9 100644
--- a/editions/tw5.com/tiddlers/images/New Release Banner.jpg.meta	
+++ b/editions/tw5.com/tiddlers/images/New Release Banner.png.meta	
@@ -1,3 +1,3 @@
 title: New Release Banner
-type: image/jpeg
+type: image/png
 tags: picture
diff --git a/package.json b/package.json
index fe538f4785..28bbaea43f 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "tiddlywiki",
   "preferGlobal": "true",
-  "version": "5.3.0",
+  "version": "5.3.1-prerelease",
   "author": "Jeremy Ruston <jeremy@jermolene.com>",
   "description": "a non-linear personal web notebook",
   "contributors": [