diff --git a/.changeset/nice-pillows-cough.md b/.changeset/nice-pillows-cough.md
new file mode 100644
index 0000000000..a845151cc8
--- /dev/null
+++ b/.changeset/nice-pillows-cough.md
@@ -0,0 +1,2 @@
+---
+---
diff --git a/packages/lit-html/src/test/directives/style-map_test.ts b/packages/lit-html/src/test/directives/style-map_test.ts
index eceef044da..2ef950a15d 100644
--- a/packages/lit-html/src/test/directives/style-map_test.ts
+++ b/packages/lit-html/src/test/directives/style-map_test.ts
@@ -133,7 +133,9 @@ suite('styleMap', () => {
     assert.equal(el.style.getPropertyValue('--size'), '');
   });
 
-  test('adds priority in updated properties', () => {
+  // IE does not seeem to properly handle priority argument to
+  // CSSStyleDeclaration.setProperty()
+  (isIE ? test.skip : test)('adds priority in updated properties', () => {
     renderStyleMap({color: 'blue !important'});
     const el = container.firstElementChild as HTMLElement;
     assert.equal(el.style.getPropertyValue('color'), 'blue');