diff --git a/package.json b/package.json
index cecd9d4..5d77f58 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "buffer-equal": "1.0.0",
     "minecraft-data": "^1.0.3",
     "prismarine-nbt": "0.2.1",
-    "protodef": "^1.0.1",
+    "protodef": "^1.1.1",
     "readable-stream": "^2.0.5",
     "ursa-purejs": "0.0.3",
     "uuid-1345": "^0.99.6",
diff --git a/src/transforms/framing.js b/src/transforms/framing.js
index 3ca7adb..5f96648 100644
--- a/src/transforms/framing.js
+++ b/src/transforms/framing.js
@@ -1,5 +1,4 @@
 const [readVarInt, writeVarInt, sizeOfVarInt] = require("protodef").types.varint;
-const {PartialReadError} = require("protodef").utils;
 const Transform = require("readable-stream").Transform;
 
 module.exports.createSplitter = function() {
@@ -54,7 +53,7 @@ class Splitter extends Transform {
       ({ value, size, error } = readVarInt(this.buffer, offset));
     }
     catch(e) {
-      if(!(e instanceof PartialReadError)) {
+      if(!(e.partialReadError)) {
         throw e;
       }
       else
@@ -68,7 +67,7 @@ class Splitter extends Transform {
         ({value, size, error} = readVarInt(this.buffer, offset));
       }
       catch(e) {
-        if(e instanceof PartialReadError) {
+        if(e.partialReadError) {
           break;
         }
         else