diff --git a/build.sbt b/build.sbt
index 134ff79..aed1d17 100644
--- a/build.sbt
+++ b/build.sbt
@@ -90,7 +90,7 @@ libraryDependencies ++= Seq("chisel3").map { dep: String =>
 
 libraryDependencies ++= Seq(
   "org.scalatest" %% "scalatest" % "3.1.3" % "test",
-  "org.scalacheck" %% "scalacheck" % "1.14.3" % "test",
+  "org.scalacheck" %% "scalacheck" % "1.15.2" % "test",
   "com.github.scopt" %% "scopt" % "3.7.1"
 )
 
diff --git a/build.sc b/build.sc
index bb5b0ec..eec578a 100644
--- a/build.sc
+++ b/build.sc
@@ -97,7 +97,7 @@ class DiagrammerModule(val crossScalaVersion: String) extends CommonModule {
   object test extends Tests {
     override def ivyDeps = Agg(
       ivy"org.scalatest::scalatest:3.1.3",
-      ivy"org.scalacheck::scalacheck:1.14.3"
+      ivy"org.scalacheck::scalacheck:1.15.2"
     )
     def testFrameworks = Seq("org.scalatest.tools.Framework")
   }