diff --git a/OpenCLKernelBuilder/build.sbt b/OpenCLKernelBuilder/build.sbt
index bec167cc..2bd1b458 100644
--- a/OpenCLKernelBuilder/build.sbt
+++ b/OpenCLKernelBuilder/build.sbt
@@ -1,4 +1,4 @@
-libraryDependencies += "com.dongxiguo" %% "fastring" % "0.3.1"
+libraryDependencies += "com.dongxiguo" %% "fastring" % "1.0.0"
 
 libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.4" % Test