diff --git a/README.md b/README.md
index 3fbc721..2071083 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ It is written in Java.
 
 ## Documentation
 
-* [API Documentation](https://kciomek.github.io/polyrun/docs/0.3.0/api/index.html)
+* [API Documentation](https://kciomek.github.io/polyrun/docs/0.3.1/api/index.html)
 
 ## Get latest release
 
@@ -14,7 +14,7 @@ To add a dependency in your project's pom.xml use the following:
     <dependency>
         <groupId>com.github.kciomek</groupId>
         <artifactId>polyrun</artifactId>
-        <version>0.3.0</version>
+        <version>0.3.1</version>
     </dependency>
 
 ## Tutorial
diff --git a/pom.xml b/pom.xml
index 38022aa..3fa124a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>com.github.kciomek</groupId>
     <artifactId>polyrun</artifactId>
-    <version>0.3.0</version>
+    <version>0.3.1</version>
     <packaging>jar</packaging>
 
     <properties>
diff --git a/src/main/java/polyrun/cli/CLI.java b/src/main/java/polyrun/cli/CLI.java
index c4744dd..05bbda9 100644
--- a/src/main/java/polyrun/cli/CLI.java
+++ b/src/main/java/polyrun/cli/CLI.java
@@ -101,7 +101,7 @@ public void parse(String args[]) throws ParseException {
         }
 
         if (cmd.hasOption("version")) {
-            System.out.println("0.3.0"); // todo: read from resources
+            System.out.println("0.3.1"); // todo: read from resources
             System.exit(0);
         }
 
diff --git a/src/main/java/polyrun/cli/Main.java b/src/main/java/polyrun/cli/Main.java
index 82619b3..c5b5bbb 100644
--- a/src/main/java/polyrun/cli/Main.java
+++ b/src/main/java/polyrun/cli/Main.java
@@ -50,6 +50,8 @@ public void consume(double[] sample) {
                             for (double val : sample) {
                                 sb.append(Double.toString(val)).append("\t");
                             }
+
+                            System.out.println(sb.deleteCharAt(sb.length() - 1).toString());
                         }
                     });
         } catch (Exception ex) {