diff --git a/build.sbt b/build.sbt
index 9baebef..97b88c9 100644
--- a/build.sbt
+++ b/build.sbt
@@ -33,7 +33,7 @@ val circeVersion = "0.14.1"
 val iterateeVersion = "0.20.0"
 val previousCirceIterateeVersion = "0.12.0"
 
-val scalaTestVersion = "3.2.11"
+val scalaTestVersion = "3.2.15"
 val scalaTestPlusVersion = "3.2.11.0"
 
 def priorTo2_13(scalaVersion: String): Boolean =