diff --git a/build.sc b/build.sc
index 3247d8bc6..7ba0efdf2 100644
--- a/build.sc
+++ b/build.sc
@@ -79,7 +79,7 @@ val scalametaVersion = "4.8.15"
 object Deps {
   val acyclic = ivy"com.lihaoyi:::acyclic:0.3.11"
   val bsp4j = ivy"ch.epfl.scala:bsp4j:${bspVersion}"
-  val bcprovJdk15on = ivy"org.bouncycastle:bcprov-jdk15on:1.70"
+  val bcprovJdk15on = ivy"org.bouncycastle:bcprov-jdk18on:1.77"
   val cask = ivy"com.lihaoyi::cask:0.6.7"
   val classPathUtil = ivy"io.get-coursier::class-path-util:0.1.4"
   val coursierInterface = ivy"io.get-coursier:interface:1.0.19"