diff --git a/build.sbt b/build.sbt
index be57305..1b0aea6 100644
--- a/build.sbt
+++ b/build.sbt
@@ -6,7 +6,8 @@
 
 libraryDependencies ++= Seq(
   "org.apache.jena" % "jena-arq" % "3.14.0",
-  "com.github.scopt" %% "scopt" % "3.7.1"
+  "com.github.scopt" %% "scopt" % "3.7.1",
+  "org.slf4j" % "slf4j-simple" % "1.7.26"
 )
 
 excludeDependencies += "commons-logging" % "commons-logging"