diff --git a/build.sbt b/build.sbt
index 7f90eae..c92e78b 100644
--- a/build.sbt
+++ b/build.sbt
@@ -4,18 +4,18 @@ lazy val root = (project in file(".")).
   settings(
     inThisBuild(List(
       organization := "com.example",
-      scalaVersion := "2.12.8",
+      scalaVersion := "2.13.2",
       version      := "0.1.0-SNAPSHOT")),
     name := "LibreCaptcha",
     libraryDependencies += scalaTest % Test,
 
-    libraryDependencies += "com.sksamuel.scrimage" %% "scrimage-core" % "2.1.8",
+    libraryDependencies += "com.sksamuel.scrimage" %% "scrimage-core" % "4.0.5",
 
-    libraryDependencies += "com.sksamuel.scrimage" %% "scrimage-io-extra" % "2.1.8",
+    libraryDependencies += "com.sksamuel.scrimage" %% "scrimage-io-extra" % "4.0.5",
 
-    libraryDependencies += "com.sksamuel.scrimage" %% "scrimage-filters" % "2.1.8",
+    libraryDependencies += "com.sksamuel.scrimage" %% "scrimage-filters" % "4.0.5",
     
-    libraryDependencies += "org.json4s" %% "json4s-jackson" % "3.6.5"
+    libraryDependencies += "org.json4s" %% "json4s-jackson" % "3.6.9"
    
 )
 
diff --git a/project/build.properties b/project/build.properties
index c0bab04..654fe70 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.2.8
+sbt.version=1.3.12