diff --git a/assets/ycashtest.png b/assets/ycashtest.png
new file mode 100644
index 0000000..f636f79
Binary files /dev/null and b/assets/ycashtest.png differ
diff --git a/configure.sh b/configure.sh
index 4ab6bf8..83c7383 100755
--- a/configure.sh
+++ b/configure.sh
@@ -5,6 +5,10 @@ ycash)
   export APP_TITLE=YWallet
   export APP_NAME=ywallet
   ;;
+ycashtest)
+  export APP_TITLE=YWalletTest
+  export APP_NAME=ywallettest
+  ;;
 zcashtest)
   export APP_TITLE=ZWalletTest
   export APP_NAME=zwallettest
diff --git a/lib/coin/ycashtest.dart b/lib/coin/ycashtest.dart
new file mode 100644
index 0000000..14ab7a7
--- /dev/null
+++ b/lib/coin/ycashtest.dart
@@ -0,0 +1,15 @@
+import "coin.dart";
+
+class Coin {
+  String app = "YWalletTest";
+  String symbol = "\u24E8";
+  String currency = "ycash";
+  String ticker = "YEC";
+  String explorerUrl = "https://yecblockexplorer.com/tx/";
+  List<LWInstance> lwd = [
+    LWInstance("Lightwalletd", "https://testlite.ycash.xyz:9067"),
+  ];
+  bool supportsUA = false;
+  bool supportsMultisig = true;
+  List<int> weights = [5, 25, 250];
+}
diff --git a/native/warp_api_ffi/Cargo.toml b/native/warp_api_ffi/Cargo.toml
index c03c7a9..ee68db5 100644
--- a/native/warp_api_ffi/Cargo.toml
+++ b/native/warp_api_ffi/Cargo.toml
@@ -23,7 +23,7 @@ hex = "0.4.3"
 
 [dependencies.zcash_primitives]
 git = "https://github.com/hhanh00/librustzcash.git"
-rev = "1518b145f8ee67e144fa8337c7dfd4c8cff899c9"
+rev = "f2d098abafd10e3744d23a28abe48ced19050f05"
 
 [build-dependencies]
 cbindgen = "0.19.0"
diff --git a/native/zcash-params b/native/zcash-params
index f54214d..aa2984d 160000
--- a/native/zcash-params
+++ b/native/zcash-params
@@ -1 +1 @@
-Subproject commit f54214d0a6752188efd1404e39b10be58a27ea0f
+Subproject commit aa2984d61a1f0014695ec5a168df3af5817006b7
diff --git a/native/zcash-sync b/native/zcash-sync
index 6c5426d..1368ef7 160000
--- a/native/zcash-sync
+++ b/native/zcash-sync
@@ -1 +1 @@
-Subproject commit 6c5426dc4bec84e93eeedcafa197146ed3bfaffc
+Subproject commit 1368ef704e7b5534f12510049e2dac42741c92b5