diff --git a/pom.xml b/pom.xml
index 8ced7f1..3766a67 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>net.time4j</groupId>
     <artifactId>time4j-tzdata</artifactId>
-    <version>5.0-2019c</version>
+    <version>5.0-2020a</version>
     <packaging>jar</packaging>
     <name>Time4J-TZDATA</name>
 
diff --git a/src/main/resources/tzrepo/tzdata.repository b/src/main/resources/tzrepo/tzdata.repository
index 2987e91..9c6ca05 100644
Binary files a/src/main/resources/tzrepo/tzdata.repository and b/src/main/resources/tzrepo/tzdata.repository differ
diff --git a/src/test/java/net/time4j/tz/repo/RepositoryTest.java b/src/test/java/net/time4j/tz/repo/RepositoryTest.java
index dd5d0d5..06dac68 100644
--- a/src/test/java/net/time4j/tz/repo/RepositoryTest.java
+++ b/src/test/java/net/time4j/tz/repo/RepositoryTest.java
@@ -37,7 +37,7 @@ public class RepositoryTest {
         TZDATA.init();
     }
 
-    private static final String STD_VERSION = "2019c";
+    private static final String STD_VERSION = "2020a";
     private static final ChronoFormatter<Moment> PARSER = Iso8601Format.EXTENDED_DATE_TIME_OFFSET;
 
     private String propertyValue = null;
diff --git a/src/test/resources/tzrepo/tzdata2020a.repository b/src/test/resources/tzrepo/tzdata2020a.repository
new file mode 100644
index 0000000..9c6ca05
Binary files /dev/null and b/src/test/resources/tzrepo/tzdata2020a.repository differ