diff --git a/install.rdf b/install.rdf
index 4397790..047223f 100644
--- a/install.rdf
+++ b/install.rdf
@@ -2,7 +2,7 @@
 <RDF xmlns="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:em="http://www.mozilla.org/2004/em-rdf#">
   <Description about="urn:mozilla:install-manifest">
     <em:id>github-wc-polyfill@Off.JustOff</em:id>
-    <em:version>1.2.18.3</em:version>
+    <em:version>1.2.19</em:version>
     <em:type>2</em:type>
     <em:bootstrap>true</em:bootstrap>
     <em:strictCompatibility>true</em:strictCompatibility>
diff --git a/release.cmd b/release.cmd
index f8c1335..72d1e49 100644
--- a/release.cmd
+++ b/release.cmd
@@ -1,5 +1,5 @@
 @echo off
-set VER=1.2.18
+set VER=1.2.19
 
 sed -i -E "s/version>.+?</version>%VER%</" install.rdf
 sed -i -E "s/version>.+?</version>%VER%</; s/download\/.+?\/github-wc-polyfill-.+?\.xpi/download\/%VER%\/github-wc-polyfill-%VER%\.xpi/" update.xml
diff --git a/update.xml b/update.xml
index c575a96..db96db9 100644
--- a/update.xml
+++ b/update.xml
@@ -5,13 +5,13 @@
       <RDF:Seq>
         <RDF:li>
           <RDF:Description>
-            <em:version>1.2.18.3</em:version>
+            <em:version>1.2.19</em:version>
             <em:targetApplication>
               <RDF:Description>
                 <em:id>{8de7fcbb-c55c-4fbe-bfc5-fc555c87dbc4}</em:id>
                 <em:minVersion>28.14.0</em:minVersion>
                 <em:maxVersion>29.*</em:maxVersion>
-                <em:updateLink>https://github.com/JustOff/github-wc-polyfill/releases/download/1.2.18/github-wc-polyfill-1.2.18.3.xpi</em:updateLink>
+                <em:updateLink>https://github.com/JustOff/github-wc-polyfill/releases/download/1.2.19/github-wc-polyfill-1.2.19.xpi</em:updateLink>
               </RDF:Description>
             </em:targetApplication>
             <em:targetApplication>
@@ -19,7 +19,7 @@
                 <em:id>{ec8030f7-c20a-464f-9b0e-13a3a9e97384}</em:id>
                 <em:minVersion>52.9</em:minVersion>
                 <em:maxVersion>52.*</em:maxVersion>
-                <em:updateLink>https://github.com/JustOff/github-wc-polyfill/releases/download/1.2.18/github-wc-polyfill-1.2.18.3.xpi</em:updateLink>
+                <em:updateLink>https://github.com/JustOff/github-wc-polyfill/releases/download/1.2.19/github-wc-polyfill-1.2.19.xpi</em:updateLink>
               </RDF:Description>
             </em:targetApplication>
             <em:targetApplication>
@@ -27,7 +27,7 @@
                 <em:id>{92650c4d-4b8e-4d2a-b7eb-24ecf4f6b63a}</em:id>
                 <em:minVersion>2.53.4</em:minVersion>
                 <em:maxVersion>2.53.*</em:maxVersion>
-                <em:updateLink>https://github.com/JustOff/github-wc-polyfill/releases/download/1.2.18/github-wc-polyfill-1.2.18.3.xpi</em:updateLink>
+                <em:updateLink>https://github.com/JustOff/github-wc-polyfill/releases/download/1.2.19/github-wc-polyfill-1.2.19.xpi</em:updateLink>
               </RDF:Description>
             </em:targetApplication>
           </RDF:Description>