diff --git a/build.gradle b/build.gradle
index 719f2b9de62..03e8125b4b7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -82,7 +82,7 @@ dependencies {
     compile 'org.apache.pdfbox:jempbox:1.8.13'
 
     // required for reading write-protected PDFs - see https://github.com/JabRef/jabref/pull/942#issuecomment-209252635
-    compile 'org.bouncycastle:bcprov-jdk15on:1.56'
+    compile 'org.bouncycastle:bcprov-jdk15on:1.57'
 
     compile 'commons-cli:commons-cli:1.4'