diff --git a/packages/animations/browser/src/render/css_keyframes/css_keyframes_driver.ts b/packages/animations/browser/src/render/css_keyframes/css_keyframes_driver.ts
index 9f5b771b44..68805f196e 100644
--- a/packages/animations/browser/src/render/css_keyframes/css_keyframes_driver.ts
+++ b/packages/animations/browser/src/render/css_keyframes/css_keyframes_driver.ts
@@ -72,7 +72,7 @@ export class CssKeyframesDriver implements AnimationDriver {
     keyframeStr += `}\n`;
 
     const kfElm = document.createElement('style');
-    kfElm.innerHTML = keyframeStr;
+    kfElm.textContent = keyframeStr;
     return kfElm;
   }