diff --git a/src/index.js b/src/index.js
index 444fd31d..58670383 100644
--- a/src/index.js
+++ b/src/index.js
@@ -201,7 +201,8 @@ class DropdownTreeSelect extends Component {
   }
 
   onKeyboardKeyDown = e => {
-    if (!this.props.enableKeyboardNavigation) { return }
+    const { enableKeyboardNavigation, readOnly } = this.props
+    if (!enableKeyboardNavigation) { return }
 
     const { showDropdown, tags, searchModeOn, currentFocus } = this.state
 
@@ -213,7 +214,7 @@ class DropdownTreeSelect extends Component {
     } else if (showDropdown && keyboardNavigation.isValidKey(e.key, true)) {
       const tm = this.treeManager
       const tree = searchModeOn ? tm.matchTree : tm.tree
-      const newFocus = tm.handleNavigationKey(currentFocus, tree, e.key, !searchModeOn, this.onCheckboxChange, this.onNodeToggle)
+      const newFocus = tm.handleNavigationKey(currentFocus, tree, e.key, readOnly, !searchModeOn, this.onCheckboxChange, this.onNodeToggle)
       if (newFocus !== currentFocus) {
         this.setState({ currentFocus: newFocus })
       }
diff --git a/src/tree-manager/index.js b/src/tree-manager/index.js
index 40bc8cfc..b3212f90 100644
--- a/src/tree-manager/index.js
+++ b/src/tree-manager/index.js
@@ -246,7 +246,7 @@ class TreeManager {
     })
   }
 
-  handleNavigationKey(currentFocus, tree, key, markSubTreeOnNonExpanded, onToggleChecked, onToggleExpanded) {
+  handleNavigationKey(currentFocus, tree, key, readOnly, markSubTreeOnNonExpanded, onToggleChecked, onToggleExpanded) {
     const prevFocus = currentFocus && this.getNodeById(currentFocus)
     const action = keyboardNavigation.getAction(prevFocus, key)
 
@@ -254,7 +254,7 @@ class TreeManager {
       const newFocus = this.handleFocusNavigationkey(tree, action, prevFocus, markSubTreeOnNonExpanded)
       return newFocus
     }
-    if (action === NavActions.ToggleChecked && prevFocus) {
+    if (action === NavActions.ToggleChecked && prevFocus && !readOnly && !(prevFocus.readOnly || prevFocus.disabled)) {
       onToggleChecked(prevFocus._id, prevFocus.checked !== true)
     }
     if (action === NavActions.ToggleExpanded && prevFocus) {