diff --git a/browser/components/NoteItem.js b/browser/components/NoteItem.js
index 625bb38d..9ef691da 100644
--- a/browser/components/NoteItem.js
+++ b/browser/components/NoteItem.js
@@ -148,15 +148,14 @@ NoteItem.propTypes = {
     tags: PropTypes.array,
     isStarred: PropTypes.bool.isRequired,
     isTrashed: PropTypes.bool.isRequired,
-    blog: {
+    blog: PropTypes.shape({
       blogLink: PropTypes.string,
       blogId: PropTypes.number
-    }
+    })
   }),
   handleNoteClick: PropTypes.func.isRequired,
   handleNoteContextMenu: PropTypes.func.isRequired,
-  handleDragStart: PropTypes.func.isRequired,
-  handleDragEnd: PropTypes.func.isRequired
+  handleDragStart: PropTypes.func.isRequired
 }
 
 export default CSSModules(NoteItem, styles)
diff --git a/browser/components/SideNavFilter.js b/browser/components/SideNavFilter.js
index 291700cf..5d5d627f 100644
--- a/browser/components/SideNavFilter.js
+++ b/browser/components/SideNavFilter.js
@@ -73,7 +73,8 @@ SideNavFilter.propTypes = {
   handleAllNotesButtonClick: PropTypes.func.isRequired,
   isStarredActive: PropTypes.bool.isRequired,
   isTrashedActive: PropTypes.bool.isRequired,
-  handleStarredButtonClick: PropTypes.func.isRequired
+  handleStarredButtonClick: PropTypes.func.isRequired,
+  handleTrashedButtonClick: PropTypes.func.isRequired
 }
 
 export default CSSModules(SideNavFilter, styles)
diff --git a/browser/components/TodoProcess.js b/browser/components/TodoProcess.js
index 251fd5b9..9d1f93cf 100644
--- a/browser/components/TodoProcess.js
+++ b/browser/components/TodoProcess.js
@@ -25,10 +25,10 @@ const TodoProcess = ({
 )
 
 TodoProcess.propTypes = {
-  todoStatus: {
+  todoStatus: PropTypes.exact({
     total: PropTypes.number.isRequired,
     completed: PropTypes.number.isRequired
-  }
+  })
 }
 
 export default CSSModules(TodoProcess, styles)
diff --git a/browser/main/Detail/ToggleModeButton.js b/browser/main/Detail/ToggleModeButton.js
index 5fd3a3c5..9d3d61f2 100644
--- a/browser/main/Detail/ToggleModeButton.js
+++ b/browser/main/Detail/ToggleModeButton.js
@@ -20,7 +20,7 @@ const ToggleModeButton = ({
 
 ToggleModeButton.propTypes = {
   onClick: PropTypes.func.isRequired,
-  editorType: PropTypes.string
+  editorType: PropTypes.string.isRequired
 }
 
 export default CSSModules(ToggleModeButton, styles)
diff --git a/browser/main/SideNav/index.js b/browser/main/SideNav/index.js
index 6a978979..9d18a72c 100644
--- a/browser/main/SideNav/index.js
+++ b/browser/main/SideNav/index.js
@@ -440,7 +440,7 @@ class SideNav extends React.Component {
 
     const style = {}
     if (!isFolded) style.width = this.props.width
-    const isTagActive = !!location.pathname.match(/tag/)
+    const isTagActive = /tag/.test(location.pathname)
     return (
       <div className='SideNav'
         styleName={isFolded ? 'root--folded' : 'root'}