diff --git a/.idea/modules/kotlin-unsigned.iml b/.idea/modules/kotlin-unsigned.iml
index 420c55e..2b7dd94 100644
--- a/.idea/modules/kotlin-unsigned.iml
+++ b/.idea/modules/kotlin-unsigned.iml
@@ -41,13 +41,13 @@
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" scope="PROVIDED" name="Gradle: org.jetbrains.kotlin:kotlin-stdlib:1.2.20-eap-33" level="project" />
+    <orderEntry type="library" scope="PROVIDED" name="Gradle: org.jetbrains.kotlin:kotlin-stdlib:1.2.20-eap-71" level="project" />
     <orderEntry type="library" scope="PROVIDED" name="Gradle: org.jetbrains:annotations:13.0" level="project" />
-    <orderEntry type="library" scope="RUNTIME" name="Gradle: org.jetbrains.kotlin:kotlin-stdlib:1.2.20-eap-33" level="project" />
+    <orderEntry type="library" scope="RUNTIME" name="Gradle: org.jetbrains.kotlin:kotlin-stdlib:1.2.20-eap-71" level="project" />
     <orderEntry type="library" scope="RUNTIME" name="Gradle: org.jetbrains:annotations:13.0" level="project" />
     <orderEntry type="library" scope="TEST" name="Gradle: io.kotlintest:kotlintest:2.0.7" level="project" />
     <orderEntry type="library" scope="TEST" name="Gradle: org.jetbrains.kotlin:kotlin-reflect:1.1.51" level="project" />
-    <orderEntry type="library" scope="TEST" name="Gradle: org.jetbrains.kotlin:kotlin-stdlib:1.2.20-eap-33" level="project" />
+    <orderEntry type="library" scope="TEST" name="Gradle: org.jetbrains.kotlin:kotlin-stdlib:1.2.20-eap-71" level="project" />
     <orderEntry type="library" scope="TEST" name="Gradle: org.jetbrains:annotations:13.0" level="project" />
     <orderEntry type="library" scope="TEST" name="Gradle: junit:junit:4.12" level="project" />
     <orderEntry type="library" scope="TEST" name="Gradle: org.mockito:mockito-core:2.7.11" level="project" />
diff --git a/build.gradle b/build.gradle
index 17abfa8..cb76566 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ apply plugin: 'com.github.johnrengelman.shadow'
 
 buildscript {
 
-    ext.kotlinVersion = '1.2.20-eap-33'
+    ext.kotlinVersion = '1.2.20-eap-71'
 
     repositories {
         jcenter()   // shadow