diff --git a/js/sigplot.layer1dSDS.js b/js/sigplot.layer1dSDS.js
index d3e7963..f6fcae2 100644
--- a/js/sigplot.layer1dSDS.js
+++ b/js/sigplot.layer1dSDS.js
@@ -31,7 +31,7 @@
     var m = require("./m");
     var mx = require("./mx");
     var common = require("./common");
-    var LRU = require("lru");
+    var LRU = require("lru-cache");
 
     /**
      * @constructor
diff --git a/js/sigplot.layer2dSDS.js b/js/sigplot.layer2dSDS.js
index ad82dac..2d64c1d 100644
--- a/js/sigplot.layer2dSDS.js
+++ b/js/sigplot.layer2dSDS.js
@@ -127,7 +127,7 @@
             }
 
             this.hcb.class = 2;
-            const LRU = require("lru");
+            const LRU = require("lru-cache");
 
             this.cache = new LRU(500);
 
diff --git a/package.json b/package.json
index 5184682..ba2031e 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
   "dependencies": {
     "budo": "^11.6.4",
     "loglevel": "^1.4.1",
-    "lru": "^3.1.0",
+    "lru-cache": "^2.7.3",
     "sigfile": "^0.1.9",
     "spin": "0.0.1",
     "tinycolor2": "^1.4.1",