diff --git a/CHANGELOG.md b/CHANGELOG.md
index d6b774d..47f9537 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,6 @@
 ## [v4.6-2020?] not yet released
+
+## [v4.5.1-2020a] published on 2020-05-19
 ### Fixed
 - NPE in deserializing of SolarTime and LunarTime [#901]
 
diff --git a/README.md b/README.md
index ac490d8..4a9938f 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ resources by defining your own assets using the same resource paths.
 While libraries like ThreetenABP or Joda-Time-Android care about holding the latest timezone data independent
 from the Android platform they fail to hold their own i18n-resources. But real-world mobile devices using the
 Android platform often use very different text resources and data for world languages, dependent on how up-to-date
-the Android OS-version is. Time4A closes this big gap **supporting actually 94 languages** and has more features
+the Android OS-version is. Time4A closes this big gap **supporting actually 95 languages** and has more features
 than any other date and time library available for the Android platform. Of course, Time4A also supports the
 **newest timezone data** available at [IANA](http://www.iana.org/time-zones). On the other side: If you really
 want you can even use the platform timezone data in parallel. Time4A gives you the freedom which timezone data to use.
@@ -32,7 +32,7 @@ Only two steps are required before coding against the API of Time4A.
 
 ```groovy
 dependencies {
-    implementation group: 'net.time4j', name: 'time4j-android', version: '4.5-2020a'
+    implementation group: 'net.time4j', name: 'time4j-android', version: '4.5.1-2020a'
 }
 ```
 
diff --git a/time4j-android/build.gradle b/time4j-android/build.gradle
index 6cf19cb..d341cf6 100644
--- a/time4j-android/build.gradle
+++ b/time4j-android/build.gradle
@@ -13,7 +13,7 @@ ext {
     siteUrl = 'https://github.com/menodata/Time4A'
     gitUrl = 'https://github.com/menodata/Time4A.git'
 
-    libraryVersion = '4.5-2020a'
+    libraryVersion = '4.5.1-2020a'
 
     developerId = 'mhochschild'
     developerName = 'Meno Hochschild'
diff --git a/time4j-android/src/main/java/net/time4j/android/ApplicationStarter.java b/time4j-android/src/main/java/net/time4j/android/ApplicationStarter.java
index 6976731..f3849d4 100644
--- a/time4j-android/src/main/java/net/time4j/android/ApplicationStarter.java
+++ b/time4j-android/src/main/java/net/time4j/android/ApplicationStarter.java
@@ -63,10 +63,10 @@ public class ApplicationStarter {
 
     //~ Statische Felder/Initialisierungen --------------------------------
 
-    private static final String VERSION = "v4.5-2020a";
+    private static final String VERSION = "v4.5.1-2020a";
     private static final int RELEASE_YEAR = 2020;
-    private static final int RELEASE_MONTH = 4;
-    private static final int RELEASE_DAY = 25;
+    private static final int RELEASE_MONTH = 5;
+    private static final int RELEASE_DAY = 19;
     private static final String TIME4A = "TIME4A";
 
     private static final AtomicBoolean PREPARED = new AtomicBoolean(false);