diff --git a/README.md b/README.md
index c227e08..3598db4 100644
--- a/README.md
+++ b/README.md
@@ -23,19 +23,24 @@ The `Shaper` language is very basic and does not have safeguards. It should be u
 
 #### Source code
 
-Clone the repo and run `./gradlew generateGrammarSource` and then `./gradlew shadowJar`. You'll find the uber-jar in `./build/libs/shaper-all.jar`.
-Generate a file like this: `java -cp shaper-all.jar com.cosminsanda.shaper.compiler.Shaper2Image --source-code "img_dim:180,shp_dim:32>>>circle,square|triangle<<<" --out-filename test.png
+* Clone the repo
+* Run `./gradlew generateGrammarSource`
+* Run `./gradlew shadowJar`.
+
+You'll find the uber-jar in `./build/libs/shaper.jar`.
+
+Generate a file like this: `java -cp shaper.jar com.cosminsanda.shaper.compiler.Shaper2Image --source-code "img_dim:180,shp_dim:32>>>circle,square|triangle<<<" --out-filename test.png
 `
 
 #### Single file
 
-`java -cp shaper-all.jar com.cosminsanda.shaper.compiler.Shaper2Image --source-file /Users/cosmin/test.shape`
+`java -cp shaper.jar com.cosminsanda.shaper.compiler.Shaper2Image --source-file /Users/cosmin/test.shape`
 
 This will create an image `/Users/cosmin/test.shape.png`
 
 #### Directory
 
-`java -cp shaper-all.jar com.cosminsanda.shaper.compiler.Shaper2Image --source-dir /Users/cosmin/shapes`
+`java -cp shaper.jar com.cosminsanda.shaper.compiler.Shaper2Image --source-dir /Users/cosmin/shapes`
 
 This will create images with a file name pattern similar to the one for single file above.
 
diff --git a/build.gradle b/build.gradle
index b32b951..a1b3d8f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
 buildscript {
-   ext.kotlin_version = '1.2.21'
+   ext.kotlin_version = '1.3.61'
    ext.antlr_version = '4.7.1'
    ext.slf4j_version = '1.7.25'
  
@@ -14,7 +14,7 @@ buildscript {
  
    dependencies {
      classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-     classpath 'com.github.jengelman.gradle.plugins:shadow:2.0.1'
+     classpath 'com.github.jengelman.gradle.plugins:shadow:4.0.3'
    }
 }
  
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 0927b1c..2894dfd 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip