Bump version to 2.2.1

Change-Id: Ia438d22b0f6ea4cc8f4db72f76284756382c764b
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a838a4d..f2315f3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
 # Changelog
 
+## [2.2.1] - 2022-12-21
 - fixed missing scripts in bin distribution
 
 ## [2.2.0] - 2022-12-21
diff --git a/Readme.md b/Readme.md
index 14e4993..6980c38 100644
--- a/Readme.md
+++ b/Readme.md
@@ -12,8 +12,8 @@
 ## Install from binary distribution
 
 ```bash
-unzip totalngrams-2.2.0-bin.zip
-export PATH=`pwd`/totalngrams-2.2.0/bin:$PATH
+unzip totalngrams-2.2.1-bin.zip
+export PATH=`pwd`/totalngrams-2.2.1/bin:$PATH
 ```
 
 ## Synopsis
diff --git a/pom.xml b/pom.xml
index 61e763b..6de1181 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>groupId</groupId>
     <artifactId>totalngrams</artifactId>
-    <version>2.2.0</version>
+    <version>2.2.1</version>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/src/main/java/org/ids_mannheim/TotalNGrams.java b/src/main/java/org/ids_mannheim/TotalNGrams.java
index b2fccc4..be0ffa5 100644
--- a/src/main/java/org/ids_mannheim/TotalNGrams.java
+++ b/src/main/java/org/ids_mannheim/TotalNGrams.java
@@ -17,7 +17,7 @@
 import java.util.stream.Collectors;
 import java.util.stream.IntStream;
 
-@CommandLine.Command(mixinStandardHelpOptions = true, name = "totalngrams", version = "2.2.0", description = "sum ngram counts from KorAP-XML, CoNLL-U files and frequency lists")
+@CommandLine.Command(mixinStandardHelpOptions = true, name = "totalngrams", version = "2.2.1", description = "sum ngram counts from KorAP-XML, CoNLL-U files and frequency lists")
 
 public class TotalNGrams implements Callable<Integer> {
     static public final Logger logger;