diff --git a/README-CHANGES.xml b/README-CHANGES.xml
index aeb709e..feda80c 100644
--- a/README-CHANGES.xml
+++ b/README-CHANGES.xml
@@ -580,9 +580,9 @@
         <c:change date="2024-10-17T00:00:00+00:00" summary="Update org.apache.maven.plugins:maven-dependency-plugin:3.6.1 → 3.7.1"/>
       </c:changes>
     </c:release>
-    <c:release date="2024-10-20T10:28:59+00:00" is-open="true" ticket-system="com.github.io7m.primogenitor" version="8.3.1">
+    <c:release date="2024-10-20T10:29:28+00:00" is-open="false" ticket-system="com.github.io7m.primogenitor" version="8.3.1">
       <c:changes>
-        <c:change date="2024-10-20T10:28:59+00:00" summary="Fix coverage generation.">
+        <c:change date="2024-10-20T00:00:00+00:00" summary="Fix coverage generation.">
           <c:tickets>
             <c:ticket id="128"/>
           </c:tickets>
diff --git a/com.io7m.primogenitor.full/pom.xml b/com.io7m.primogenitor.full/pom.xml
index 09833a9..cd2ca39 100644
--- a/com.io7m.primogenitor.full/pom.xml
+++ b/com.io7m.primogenitor.full/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <artifactId>com.io7m.primogenitor</artifactId>
     <groupId>com.io7m.primogenitor</groupId>
-    <version>8.3.1-SNAPSHOT</version>
+    <version>8.3.1</version>
   </parent>
 
   <artifactId>com.io7m.primogenitor.full</artifactId>
diff --git a/com.io7m.primogenitor.lite/pom.xml b/com.io7m.primogenitor.lite/pom.xml
index 844739a..faaedea 100644
--- a/com.io7m.primogenitor.lite/pom.xml
+++ b/com.io7m.primogenitor.lite/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <artifactId>com.io7m.primogenitor</artifactId>
     <groupId>com.io7m.primogenitor</groupId>
-    <version>8.3.1-SNAPSHOT</version>
+    <version>8.3.1</version>
   </parent>
 
   <artifactId>com.io7m.primogenitor.lite</artifactId>
diff --git a/com.io7m.primogenitor.support/pom.xml b/com.io7m.primogenitor.support/pom.xml
index 5d82e5a..3c5b9e2 100644
--- a/com.io7m.primogenitor.support/pom.xml
+++ b/com.io7m.primogenitor.support/pom.xml
@@ -8,7 +8,7 @@
   <parent>
     <artifactId>com.io7m.primogenitor</artifactId>
     <groupId>com.io7m.primogenitor</groupId>
-    <version>8.3.1-SNAPSHOT</version>
+    <version>8.3.1</version>
   </parent>
 
   <artifactId>com.io7m.primogenitor.support</artifactId>
diff --git a/com.io7m.primogenitor.tests/pom.xml b/com.io7m.primogenitor.tests/pom.xml
index 062f188..5135a15 100644
--- a/com.io7m.primogenitor.tests/pom.xml
+++ b/com.io7m.primogenitor.tests/pom.xml
@@ -9,7 +9,7 @@
   <parent>
     <artifactId>com.io7m.primogenitor</artifactId>
     <groupId>com.io7m.primogenitor</groupId>
-    <version>8.3.1-SNAPSHOT</version>
+    <version>8.3.1</version>
   </parent>
 
   <artifactId>com.io7m.primogenitor.tests</artifactId>
diff --git a/pom.xml b/pom.xml
index 3af0b67..dbbb196 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.io7m.primogenitor</groupId>
   <artifactId>com.io7m.primogenitor</artifactId>
-  <version>8.3.1-SNAPSHOT</version>
+  <version>8.3.1</version>
   <packaging>pom</packaging>
 
   <modules>
@@ -61,7 +61,7 @@
     <io7m.javadoc.docLint>-Xdoclint:all</io7m.javadoc.docLint>
 
     <!-- The timestamp used for all outputs, for reproducibility. -->
-    <project.build.outputTimestamp>2024-10-20T10:18:55Z</project.build.outputTimestamp>
+    <project.build.outputTimestamp>2024-10-20T10:29:38Z</project.build.outputTimestamp>
 
     <!-- The versions of all plugins used -->
     <io7m.bnd-baseline-maven-plugin.version>7.0.0</io7m.bnd-baseline-maven-plugin.version>