diff --git a/src/chains/testnet/jackal.json b/src/chains/testnet/jackal.json
index 92984b13..f0a85c02 100644
--- a/src/chains/testnet/jackal.json
+++ b/src/chains/testnet/jackal.json
@@ -4,7 +4,7 @@
     "api": "https://api.jackalprotocol.com",
     "rpc": "https://rpc.jackalprotocol.com",
     "coin_type": "118",
-    "sdk_version": "0.49.5",
+    "sdk_version": "0.45.9",
     "addr_prefix": "jkl", 
     "logo": "/logos/jackal.png",
     "assets": [{