diff --git a/src/components/ManifestRelatedLinks.js b/src/components/ManifestRelatedLinks.js
index 1481d7cfca..cbba6aefd1 100644
--- a/src/components/ManifestRelatedLinks.js
+++ b/src/components/ManifestRelatedLinks.js
@@ -127,7 +127,6 @@ export class ManifestRelatedLinks extends Component {
 }
 
 ManifestRelatedLinks.propTypes = {
-  classes: PropTypes.objectOf(PropTypes.string).isRequired,
   homepage: PropTypes.arrayOf(PropTypes.shape({
     label: PropTypes.string,
     value: PropTypes.string,
diff --git a/src/components/VideoViewer.js b/src/components/VideoViewer.js
index 565cb0d855..a133aceed3 100644
--- a/src/components/VideoViewer.js
+++ b/src/components/VideoViewer.js
@@ -43,7 +43,6 @@ export class VideoViewer extends Component {
 
 VideoViewer.propTypes = {
   captions: PropTypes.arrayOf(PropTypes.object), // eslint-disable-line react/forbid-prop-types
-  classes: PropTypes.objectOf(PropTypes.string).isRequired,
   videoOptions: PropTypes.object, // eslint-disable-line react/forbid-prop-types
   videoResources: PropTypes.arrayOf(PropTypes.object), // eslint-disable-line react/forbid-prop-types
 };