diff --git a/lerna.json b/lerna.json
index c020abd94..a514c17dd 100644
--- a/lerna.json
+++ b/lerna.json
@@ -5,6 +5,6 @@
     "packages/plugins/*",
     "packages/utils"
   ],
-  "version": "1.12.0",
+  "version": "1.13.0",
   "npmClient": "yarn"
 }
diff --git a/packages/sortable/package.json b/packages/sortable/package.json
index a6590371a..11a4d1c4f 100644
--- a/packages/sortable/package.json
+++ b/packages/sortable/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "@sortablejs/sortable",
-  "version": "1.12.0",
+  "name": "@sortablejs/core",
+  "version": "1.13.0",
   "private": true
 }
diff --git a/packages/utils/src/utils.ts b/packages/utils/src/utils.ts
index c77e636b5..f1c4c8e1d 100644
--- a/packages/utils/src/utils.ts
+++ b/packages/utils/src/utils.ts
@@ -185,7 +185,9 @@ function getRect(
 
   let elRect, top, left, bottom, right, height, width;
 
-  if (el !== window && el !== getWindowScrollingElement()) {
+  // Fix IE11 "SCRIPT16389: Unspecified error." when dragging element #1904
+  // submitted by laukstein
+  if (el !== window && el.parentNode && el !== getWindowScrollingElement()) {
     elRect = el.getBoundingClientRect();
     top = elRect.top;
     left = elRect.left;