diff --git a/project/Deps.scala b/project/Deps.scala
index 4158b370e5..7502619abf 100644
--- a/project/Deps.scala
+++ b/project/Deps.scala
@@ -3,7 +3,7 @@ import sbt._
 object Deps {
 
   object V {
-    val bouncyCastle = "1.65.01"
+    val bouncyCastle = "1.66"
     val logback = "1.2.3"
     val scalacheck = "1.14.3"
     val scalaTest = "3.2.0"