diff --git a/backend/pom.xml b/backend/pom.xml
index b1fead0..446c8df 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -42,10 +42,11 @@
             <groupId>com.h2database</groupId>
             <artifactId>h2</artifactId>
         </dependency>
+        <!-- Fork with modern algorithm support (ed25519, current kex/ciphers); drop-in for com.jcraft.jsch -->
         <dependency>
-            <groupId>com.jcraft</groupId>
+            <groupId>com.github.mwiede</groupId>
             <artifactId>jsch</artifactId>
-            <version>0.1.55</version>
+            <version>2.27.6</version>
         </dependency>
         <dependency>
             <groupId>io.jsonwebtoken</groupId>