diff --git a/cache.js b/cache.js
deleted file mode 100644
index eeb9433..0000000
--- a/cache.js
+++ /dev/null
@@ -1,81 +0,0 @@
-const MAX_CACHE_SIZE = 100;
-
-const transformArrayBufferIntoStr = (str) => {
-  if (
-    !str ||
-    str.length === 0 ||
-    (!isArrayBuffer(str) && typeof str !== "string")
-  ) {
-    return;
-  }
-
-  let newStr = str;
-
-  // Trim leading `0x` if present
-  if (newStr.slice(0, 2) === "0x") {
-    newStr = newStr.slice(2);
-  } else if (isArrayBuffer(newStr)) {
-    newStr = Buffer.from(newStr).toString("hex");
-  }
-
-  return newStr;
-};
-
-const generateDefKey = (data, to) => {
-  if (!data || !to) {
-    return;
-  }
-
-  const dataStr = transformArrayBufferIntoStr(data);
-  const toStr = transformArrayBufferIntoStr(to);
-
-  if (!dataStr || !toStr) {
-    return;
-  }
-
-  return `${toStr}${dataStr.slice(0, 8)}`;
-};
-
-const getCachedDef = (tx, cache) => {
-  return cache.get(generateDefKey(tx.data, tx.to));
-};
-
-const saveDefToCache = (tx, cache, def) => {
-  if (!tx.data || tx.data.length === 0) {
-    return;
-  }
-
-  const key = generateDefKey(tx.data, tx.to);
-  if (!key) {
-    return;
-  }
-
-  if (cache.size >= MAX_CACHE_SIZE) {
-    cache.delete(cache.keys().next().value);
-  }
-  cache.set(key, def);
-};
-
-const serializeCache = (cache) => {
-  return JSON.stringify([...cache]);
-};
-
-const deserializeCache = (cache) => {
-  return new Map(JSON.parse(cache));
-};
-
-const isArrayBuffer = (value) => {
-  return (
-    value &&
-    value.buffer instanceof ArrayBuffer &&
-    value.byteLength !== undefined
-  );
-};
-
-module.exports = {
-  generateDefKey,
-  getCachedDef,
-  saveDefToCache,
-  serializeCache,
-  deserializeCache,
-};
diff --git a/index.js b/index.js
index 4cd3261..806efc9 100644
--- a/index.js
+++ b/index.js
@@ -5,12 +5,6 @@ const SDK = require('gridplus-sdk');
 const EthTx = require('@ethereumjs/tx');
 const { addHexPrefix } = require("@ethereumjs/util");
 const rlp = require('rlp');
-const {
-  serializeCache,
-  deserializeCache,
-  getCachedDef,
-  saveDefToCache,
-} = require("./cache");
 const keyringType = 'Lattice Hardware';
 const HARDENED_OFFSET = 0x80000000;
 const PER_PAGE = 5;
@@ -22,7 +16,6 @@ const CONNECT_TIMEOUT = 20000;
 class LatticeKeyring extends EventEmitter {
   constructor (opts={}) {
     super()
-    this.requestCache = new Map();
     this.type = keyringType;
     this._resetDefaults();
     this.deserialize(opts);
@@ -52,8 +45,6 @@ class LatticeKeyring extends EventEmitter {
       this.network = opts.network;
     if (opts.page)
       this.page = opts.page;
-    if (opts.requestCache) 
-      this.requestCache = deserializeCache(opts.requestCache)
     return;
   }
 
@@ -73,7 +64,6 @@ class LatticeKeyring extends EventEmitter {
       network: this.network,
       page: this.page,
       hdPath: this.hdPath,
-      requestCache: serializeCache(this.requestCache),
     };
   }
 
@@ -187,18 +177,9 @@ class LatticeKeyring extends EventEmitter {
         encodingType: SDK.Constants.SIGNING.ENCODINGS.EVM,
         signerPath,
       };
-      let def;
-      const cachedDef = getCachedDef(tx, this.requestCache)
-
-      if (cachedDef) {
-        def = cachedDef
-      } else {
-        const supportsDecoderRecursion = fwVersion.major > 0 || fwVersion.minor >=16;
-        // Check if we can decode the calldata
-        const { def: fetchedDef } = await SDK.Utils.fetchCalldataDecoder(tx.data, tx.to, chainId, supportsDecoderRecursion);
-        saveDefToCache(tx, this.requestCache, fetchedDef);
-        def = fetchedDef
-      }
+      const supportsDecoderRecursion = fwVersion.major > 0 || fwVersion.minor >=16;
+      // Check if we can decode the calldata
+      const { def } = await SDK.Utils.fetchCalldataDecoder(tx.data, tx.to, chainId, supportsDecoderRecursion);
       if (def) {
         data.decoder = def;
       }
@@ -448,7 +429,6 @@ class LatticeKeyring extends EventEmitter {
     this.unlockedAccount = 0;
     this.network = null;
     this.hdPath = STANDARD_HD_PATH;
-    this.requestCache = new Map()
   }
 
   async _openConnectorTab(url) {
@@ -731,7 +711,6 @@ class LatticeKeyring extends EventEmitter {
     }
     return activeWallet.uid.toString('hex');
   }
-
 }
 
 // -----