diff --git a/jmh/pom.xml b/jmh/pom.xml
index dce6aa5..ff1c1a8 100644
--- a/jmh/pom.xml
+++ b/jmh/pom.xml
@@ -5,12 +5,12 @@
     <parent>
         <groupId>nl.sander</groupId>
         <artifactId>jsonthingy-pom</artifactId>
-        <version>1.2</version>
+        <version>1.3</version>
     </parent>
 
     <name>JsonToy-JMH</name>
     <artifactId>jsonthingy-jmhtests</artifactId>
-    <version>1.2</version>
+    <version>1.3</version>
     <packaging>jar</packaging>
 
     <properties>
diff --git a/lib/pom.xml b/lib/pom.xml
index b61f595..8277ea3 100644
--- a/lib/pom.xml
+++ b/lib/pom.xml
@@ -5,12 +5,12 @@
     <parent>
         <groupId>nl.sander</groupId>
         <artifactId>jsonthingy-pom</artifactId>
-        <version>1.2</version>
+        <version>1.3</version>
     </parent>
 
     <name>JsonToy</name>
     <artifactId>jsonthingy</artifactId>
-    <version>1.2</version>
+    <version>1.3</version>
     <packaging>jar</packaging>
 
     <properties>
diff --git a/lib/src/main/java/nl/sanderhautvast/json/ser/Mapper.java b/lib/src/main/java/nl/sanderhautvast/json/ser/Mapper.java
index 130ed97..2d53534 100644
--- a/lib/src/main/java/nl/sanderhautvast/json/ser/Mapper.java
+++ b/lib/src/main/java/nl/sanderhautvast/json/ser/Mapper.java
@@ -80,12 +80,15 @@ public class Mapper {
                     b.append("\"");
                     Mapper.escape(b, (Character) value);
                     b.append("\"");
+                } else if (type == UUID.class) {
+                    b.append("\"");
+                    b.append(value.toString());
+                    b.append("\"");
                 } else if (type == Boolean.class
                         || type == Integer.class
                         || type == Long.class
                         || type == Float.class
                         || type == Double.class
-                        || type == UUID.class
                         || type == Byte.class
                         || type == Short.class
                         || type == BigInteger.class
diff --git a/pom.xml b/pom.xml
index 73ef914..d07d51c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <name>JsonToy</name>
     <groupId>nl.sander</groupId>
     <artifactId>jsonthingy-pom</artifactId>
-    <version>1.2</version>
+    <version>1.3</version>
     <packaging>pom</packaging>
 
     <modules>