diff --git a/package.json b/package.json
index 85313c19..76964c22 100644
--- a/package.json
+++ b/package.json
@@ -32,6 +32,7 @@
   },
   "homepage": "https://github.com/biothings/bte_trapi_query_graph_handler#readme",
   "devDependencies": {
+    "@types/async": "^3.2.22",
     "@types/debug": "^4.1.10",
     "@types/jest": "^29.5.6",
     "@types/lodash": "^4.14.200",
@@ -64,7 +65,7 @@
     "debug": "^4.3.4",
     "ioredis": "^5.3.2",
     "lodash": "^4.17.21",
-    "lz4": "^0.6.5",
+    "lz4-napi": "^2.2.0",
     "redlock": "5.0.0-beta.2"
   }
 }
diff --git a/src/cache_handler.ts b/src/cache_handler.ts
index 079a57e3..3cc01a8c 100644
--- a/src/cache_handler.ts
+++ b/src/cache_handler.ts
@@ -4,7 +4,7 @@ const debug = Debug('bte:biothings-explorer-trapi:cache_handler');
 import LogEntry, { StampedLog } from './log_entry';
 import async from 'async';
 import helper from './helper';
-import lz4 from 'lz4';
+import { compressSync, uncompressSync } from 'lz4-napi';
 import chunker from 'stream-chunker';
 import { Readable, Transform } from 'stream';
 import { Record, RecordPackage } from '@biothings-explorer/api-response-transform';
@@ -34,7 +34,7 @@ class DelimitedChunksDecoder extends Transform {
       const parts = this._buffer.split(',');
       this._buffer = parts.pop();
       parts.forEach((part) => {
-        const parsedPart = JSON.parse(lz4.decode(Buffer.from(part, 'base64url')).toString());
+        const parsedPart: unknown = JSON.parse(uncompressSync(Buffer.from(part, 'base64url')).toString());
         if (Array.isArray(parsedPart)) {
           parsedPart.forEach((obj) => this.push(obj));
         } else {
@@ -49,12 +49,12 @@ class DelimitedChunksDecoder extends Transform {
   _flush(callback: (error?: Error | null | undefined, data?: unknown) => void): void {
     try {
       if (this._buffer.length) {
-        const final = JSON.parse(lz4.decode(Buffer.from(this._buffer, 'base64url')).toString());
+        const final: unknown = JSON.parse(uncompressSync(Buffer.from(this._buffer, 'base64url')).toString());
         callback(null, final);
       }
       callback();
     } catch (error) {
-      callback(error);
+      callback(error as Error);
     }
   }
 }
@@ -72,7 +72,7 @@ class DelimitedChunksEncoder extends Transform {
   _transform(obj: unknown, encoding: unknown, callback: () => void) {
     this._buffer.push(obj); // stringify/compress 64 objects at a time limits compress calls
     if (this._buffer.length === 64) {
-      const compressedPart = lz4.encode(JSON.stringify(this._buffer)).toString('base64url') + ',';
+      const compressedPart = compressSync(JSON.stringify(this._buffer)).toString('base64url') + ',';
       this.push(compressedPart);
       this._buffer = [];
     }
@@ -82,12 +82,12 @@ class DelimitedChunksEncoder extends Transform {
   _flush(callback: (error?: Error | null | undefined, data?: unknown) => void) {
     try {
       if (this._buffer.length) {
-        callback(null, lz4.encode(JSON.stringify(this._buffer)).toString('base64url') + ',');
+        callback(null, compressSync(JSON.stringify(this._buffer)).toString('base64url') + ',');
         return;
       }
       callback();
     } catch (error) {
-      callback(error);
+      callback(error as Error);
     }
   }
 }