diff --git a/build.sbt b/build.sbt
index 972e3e6c..a26c3e53 100644
--- a/build.sbt
+++ b/build.sbt
@@ -75,7 +75,7 @@ lazy val parser = project
     mimaPreviousArtifacts := Set("org.sangria-graphql" %% "sangria-parser" % "4.0.0"),
     libraryDependencies ++= Seq(
       // AST Parser
-      "org.parboiled" %% "parboiled" % "2.5.0",
+      "org.parboiled" %% "parboiled" % "2.5.1",
       "org.scalatest" %% "scalatest" % "3.2.17" % Test
     ),
     apiURL := {