diff --git a/docs-core/src/main/java/com/sismics/docs/core/listener/async/FileProcessingAsyncListener.java b/docs-core/src/main/java/com/sismics/docs/core/listener/async/FileProcessingAsyncListener.java
index 9cc044c5..cdcb20a8 100644
--- a/docs-core/src/main/java/com/sismics/docs/core/listener/async/FileProcessingAsyncListener.java
+++ b/docs-core/src/main/java/com/sismics/docs/core/listener/async/FileProcessingAsyncListener.java
@@ -96,7 +96,7 @@ public class FileProcessingAsyncListener {
         final File file = event.getFile();
         FormatHandler formatHandler = FormatHandlerUtil.find(file.getMimeType());
         if (formatHandler == null) {
-            log.error("Format unhandled: " + file.getMimeType());
+            log.info("Format unhandled: " + file.getMimeType());
             FileUtil.endProcessingFile(file.getId());
             return;
         }
diff --git a/docs-core/src/main/java/com/sismics/docs/core/util/EncryptionUtil.java b/docs-core/src/main/java/com/sismics/docs/core/util/EncryptionUtil.java
index 2acd7abd..e3b3ebc2 100644
--- a/docs-core/src/main/java/com/sismics/docs/core/util/EncryptionUtil.java
+++ b/docs-core/src/main/java/com/sismics/docs/core/util/EncryptionUtil.java
@@ -32,6 +32,7 @@ public class EncryptionUtil {
     static {
         // Initialize Bouncy Castle provider
         Security.insertProviderAt(new BouncyCastleProvider(), 1);
+        Security.removeProvider("SunRsaSign");
     }
     
     /**
diff --git a/pom.xml b/pom.xml
index 915e88a4..020d7c4c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -34,7 +34,7 @@
     <org.apache.lucene.version>7.5.0</org.apache.lucene.version>
     <org.imgscalr.imgscalr-lib.version>4.2</org.imgscalr.imgscalr-lib.version>
     <org.apache.pdfbox.pdfbox.version>2.0.12</org.apache.pdfbox.pdfbox.version>
-    <org.bouncycastle.bcprov-jdk15on.version>1.54</org.bouncycastle.bcprov-jdk15on.version>
+    <org.bouncycastle.bcprov-jdk15on.version>1.61</org.bouncycastle.bcprov-jdk15on.version>
     <joda-time.joda-time.version>2.10</joda-time.joda-time.version>
     <org.hibernate.hibernate.version>5.3.7.Final</org.hibernate.hibernate.version>
     <javax.servlet.javax.servlet-api.version>4.0.1</javax.servlet.javax.servlet-api.version>