diff --git a/jmh/pom.xml b/jmh/pom.xml
index b01b42c..b7d6a1b 100644
--- a/jmh/pom.xml
+++ b/jmh/pom.xml
@@ -5,12 +5,12 @@
     <parent>
         <groupId>nl.sander</groupId>
         <artifactId>jsonthingy-pom</artifactId>
-        <version>1.4</version>
+        <version>1.5</version>
     </parent>
 
     <name>JsonToy-JMH</name>
     <artifactId>jsonthingy-jmhtests</artifactId>
-    <version>1.4</version>
+    <version>1.5</version>
     <packaging>jar</packaging>
 
     <properties>
diff --git a/lib/pom.xml b/lib/pom.xml
index 36476bf..73c5d71 100644
--- a/lib/pom.xml
+++ b/lib/pom.xml
@@ -5,12 +5,12 @@
     <parent>
         <groupId>nl.sander</groupId>
         <artifactId>jsonthingy-pom</artifactId>
-        <version>1.4</version>
+        <version>1.5</version>
     </parent>
 
     <name>JsonToy</name>
     <artifactId>jsonthingy</artifactId>
-    <version>1.4</version>
+    <version>1.5</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 1391fe3..59456f4 100644
--- a/lib/src/main/java/nl/sanderhautvast/json/ser/Mapper.java
+++ b/lib/src/main/java/nl/sanderhautvast/json/ser/Mapper.java
@@ -7,6 +7,8 @@ import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.math.BigDecimal;
 import java.math.BigInteger;
+import java.time.LocalDate;
+import java.time.LocalDateTime;
 import java.util.*;
 import java.util.concurrent.ConcurrentHashMap;
 
@@ -80,7 +82,7 @@ public class Mapper {
                     b.append("\"");
                     Mapper.escape(b, (Character) value);
                     b.append("\"");
-                } else if (type == UUID.class || type.isEnum()) {
+                } else if (type == UUID.class || type == LocalDate.class || type == LocalDateTime.class || type.isEnum()) {
                     b.append("\"");
                     b.append(value.toString());
                     b.append("\"");
diff --git a/lib/src/test/java/nl/sanderhautvast/json/ser/LocalDateTest.java b/lib/src/test/java/nl/sanderhautvast/json/ser/LocalDateTest.java
new file mode 100644
index 0000000..fb26523
--- /dev/null
+++ b/lib/src/test/java/nl/sanderhautvast/json/ser/LocalDateTest.java
@@ -0,0 +1,21 @@
+package nl.sanderhautvast.json.ser;
+
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+class LocalDateTest {
+
+    @Test
+    void testLocalDate() {
+        assertEquals("\"2023-10-11\"", Mapper.json(LocalDate.of(2023, 10, 11)));
+    }
+
+    @Test
+    void testLocalDateTime() {
+        assertEquals("\"2023-10-11T13:15:27\"", Mapper.json(LocalDateTime.of(2023, 10, 11,13,15,27)));
+    }
+}
diff --git a/pom.xml b/pom.xml
index 8dd4ffd..0d7df72 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
     <name>JsonToy</name>
     <groupId>nl.sander</groupId>
     <artifactId>jsonthingy-pom</artifactId>
-    <version>1.4</version>
+    <version>1.5</version>
     <packaging>pom</packaging>
 
     <modules>