diff --git a/README.md b/README.md
index 0d7aed32..9cb0ca96 100644
--- a/README.md
+++ b/README.md
@@ -356,7 +356,7 @@ This library simplifies the process of creating a new HDWallet's for:
 | XUEZ                                                              | `XUEZ`               | Yes     | No      | No     | 225       | `m/44'/225'/0'/0/0`  |
 | [XinFin](https://github.com/XinFinOrg/XDPoSChain)                 | `XDC`                | Yes     | No      | Yes    | 550       | `m/44'/550'/0'/0/0`  |
 | ZClassic                                                          | `ZCL`                | Yes     | No      | No     | 147       | `m/44'/147'/0'/0/0`  |
-| Zcash                                                             | `ZEC`                | Yes     | No      | No     | 133       | `m/44'/133'/0'/0/0`  |
+| [Zcash](https://github.com/zcash/zcash)                           | `ZEC`, `ZECTEST`     | Yes     | Yes     | No     | 133       | `m/44'/133'/0'/0/0`  |
 | Zencash                                                           | `ZEN`                | Yes     | No      | No     | 121       | `m/44'/121'/0'/0/0`  |
 
 ## Donations
diff --git a/hdwallet/cryptocurrencies.py b/hdwallet/cryptocurrencies.py
index 1099f4b5..d54f6447 100644
--- a/hdwallet/cryptocurrencies.py
+++ b/hdwallet/cryptocurrencies.py
@@ -3213,18 +3213,18 @@ class LitecoinMainnet(Cryptocurrency):
     })
 
     EXTENDED_PRIVATE_KEY = ExtendedPrivateKey({
-        "P2PKH": 0x019d9cfe,
-        "P2SH": 0x019d9cfe,
-        "P2WPKH": 0x04b2430c,
-        "P2WPKH_IN_P2SH": 0x01b26792,
+        "P2PKH": 0x488ade4,
+        "P2SH": 0x488ade4,
+        "P2WPKH": None,
+        "P2WPKH_IN_P2SH": None,
         "P2WSH": None,
         "P2WSH_IN_P2SH": None
     })
     EXTENDED_PUBLIC_KEY = ExtendedPublicKey({
-        "P2PKH": 0x019da462,
-        "P2SH": 0x019da462,
-        "P2WPKH": 0x04b24746,
-        "P2WPKH_IN_P2SH": 0x01b26ef6,
+        "P2PKH": 0x488b21e,
+        "P2SH": 0x488b21e,
+        "P2WPKH": None,
+        "P2WPKH_IN_P2SH": None,
         "P2WSH": None,
         "P2WSH_IN_P2SH": None
     })
@@ -3245,33 +3245,33 @@ class LitecoinTestnet(Cryptocurrency):
         "HARDENED": True
     })
 
-    SCRIPT_ADDRESS = 0xc4
+    SCRIPT_ADDRESS = 0x3a
     PUBLIC_KEY_ADDRESS = 0x6f
     SEGWIT_ADDRESS = SegwitAddress({
-        "HRP": "litecointestnet",
+        "HRP": "tltc",
         "VERSION": 0x00
     })
 
     EXTENDED_PRIVATE_KEY = ExtendedPrivateKey({
-        "P2PKH": 0x0436ef7d,
-        "P2SH": 0x0436ef7d,
-        "P2WPKH": 0x04358394,
-        "P2WPKH_IN_P2SH": 0x04358394,
+        "P2PKH": 0x04358394,
+        "P2SH": 0x04358394,
+        "P2WPKH": None,
+        "P2WPKH_IN_P2SH": None,
         "P2WSH": None,
         "P2WSH_IN_P2SH": None
     })
     EXTENDED_PUBLIC_KEY = ExtendedPublicKey({
-        "P2PKH": 0x0436f6e1,
-        "P2SH": 0x0436f6e1,
-        "P2WPKH": 0x043587cf,
-        "P2WPKH_IN_P2SH": 0x043587cf,
+        "P2PKH": 0x043587cf,
+        "P2SH": 0x043587cf,
+        "P2WPKH": None,
+        "P2WPKH_IN_P2SH": None,
         "P2WSH": None,
         "P2WSH_IN_P2SH": None
     })
 
     MESSAGE_PREFIX = "\x19Litecoin Signed Message:\n"
     DEFAULT_PATH = f"m/44'/{str(COIN_TYPE)}/0'/0/0"
-    WIF_SECRET_KEY = 0xb0
+    WIF_SECRET_KEY = 0xef
 
 
 class LitecoinZMainnet(Cryptocurrency):
@@ -6239,7 +6239,7 @@ class ZcashMainnet(Cryptocurrency):
     NAME = "Zcash"
     SYMBOL = "ZEC"
     NETWORK = "mainnet"
-    SOURCE_CODE = None
+    SOURCE_CODE = "https://github.com/zcash/zcash"
     COIN_TYPE = CoinType({
         "INDEX": 133,
         "HARDENED": True
@@ -6274,6 +6274,46 @@ class ZcashMainnet(Cryptocurrency):
     WIF_SECRET_KEY = 0x80
 
 
+class ZcashTestnet(Cryptocurrency):
+
+    NAME = "Zcash"
+    SYMBOL = "ZECTEST"
+    NETWORK = "testnet"
+    SOURCE_CODE = "https://github.com/zcash/zcash"
+    COIN_TYPE = CoinType({
+        "INDEX": 1,
+        "HARDENED": True
+    })
+
+    SCRIPT_ADDRESS = 0x1cba
+    PUBLIC_KEY_ADDRESS = 0x1d25
+    SEGWIT_ADDRESS = SegwitAddress({
+        "HRP": None,
+        "VERSION": 0x00
+    })
+
+    EXTENDED_PRIVATE_KEY = ExtendedPrivateKey({
+        "P2PKH": 0x4358394,
+        "P2SH": 0x4358394,
+        "P2WPKH": None,
+        "P2WPKH_IN_P2SH": None,
+        "P2WSH": None,
+        "P2WSH_IN_P2SH": None
+    })
+    EXTENDED_PUBLIC_KEY = ExtendedPublicKey({
+        "P2PKH": 0x43587cf,
+        "P2SH": 0x43587cf,
+        "P2WPKH": None,
+        "P2WPKH_IN_P2SH": None,
+        "P2WSH": None,
+        "P2WSH_IN_P2SH": None
+    })
+
+    MASSAGE_PREFIX = "\x18Zcash Signed Message:\n"
+    DEFAULT_PATH = f"m/44'/{str(COIN_TYPE)}/0'/0/0"
+    WIF_SECRET_KEY = 0xef
+
+
 class ZencashMainnet(Cryptocurrency):
 
     NAME = "Zencash"
diff --git a/hdwallet/symbols.py b/hdwallet/symbols.py
index e90c4621..be3a03d3 100644
--- a/hdwallet/symbols.py
+++ b/hdwallet/symbols.py
@@ -275,7 +275,7 @@
 # ZClassic
 ZCL = "ZCL"
 # Zcash
-ZEC = "ZEC"
+ZEC, ZECTEST = "ZEC", "ZECTEST"
 # Zencash
 ZEN = "ZEN"
 
@@ -418,6 +418,6 @@
     "XUEZ",
     "XDC",
     "ZCL",
-    "ZEC",
+    "ZEC", "ZECTEST"
     "ZEN"
 ]