diff --git a/demo/ModalControls/index.tsx b/demo/ModalControls/index.tsx
index aea7604..d1d5bd1 100644
--- a/demo/ModalControls/index.tsx
+++ b/demo/ModalControls/index.tsx
@@ -11,11 +11,7 @@ const ModalControls: React.FC<ModalPropsWithContext> = (props) => {
     lockBodyScroll,
   } = props;
 
-  const {
-    closeOnBlur,
-    closeAllModals,
-    toggleModal,
-  } = useModal();
+  const { closeOnBlur, closeAllModals, toggleModal, updateModalLock, isModalLocked } = useModal();
 
   return (
     <Fragment>
@@ -47,6 +43,22 @@ const ModalControls: React.FC<ModalPropsWithContext> = (props) => {
       </button>
       <br />
       <br />
+      <label htmlFor="lockOpen">
+        <code>Lock Open:&nbsp;</code>
+        <input
+          type="checkbox"
+          id="lockOpen"
+          onChange={(e) => {
+            updateModalLock({
+              slug,
+              lock: Boolean(e.target.value === "true"),
+            })
+          }}
+          value={Boolean(!isModalLocked(slug)).toString() || ""}
+          checked={isModalLocked(slug)}
+        />
+      </label>
+      <br />
       <label htmlFor="closeOnBlur">
         <code>closeOnBlur:&nbsp;</code>
         <input
diff --git a/src/ModalProvider/context.tsx b/src/ModalProvider/context.tsx
index 0e7c611..349e03a 100644
--- a/src/ModalProvider/context.tsx
+++ b/src/ModalProvider/context.tsx
@@ -6,6 +6,7 @@ export type ModalStatus = {
   slug: string
   isOpen: boolean
   openedOn?: number
+  locked?: boolean
 }
 
 export type ModalState = {
@@ -19,6 +20,10 @@ export interface IModalContext extends ModalProviderProps {
   modalState: ModalState
   oneModalIsOpen: boolean
   isModalOpen: (slug: string) => boolean // eslint-disable-line no-unused-vars
+  /**
+   * Check if a modal is locked (cannot be closed programmatically)
+   */
+  isModalLocked: (slug: string) => boolean // eslint-disable-line no-unused-vars
   closeOnBlur: boolean
   bodyScrollIsLocked: boolean
   classPrefix?: string
@@ -32,6 +37,11 @@ export interface IModalContext extends ModalProviderProps {
     shouldLock: boolean, // eslint-disable-line no-unused-vars
     excludingRef: HTMLElement // eslint-disable-line no-unused-vars
   ) => void
+  /**
+   * Set a modal to "locked" to prevent closing it when
+   * calling functions that would close it
+   */
+  updateModalLock: ({slug, lock}: {slug: string, lock: boolean}) => void // eslint-disable-line no-unused-vars
 }
 
 export const ModalContext = createContext<IModalContext>({} as IModalContext);
diff --git a/src/ModalProvider/index.tsx b/src/ModalProvider/index.tsx
index 9eb0482..aa2c767 100644
--- a/src/ModalProvider/index.tsx
+++ b/src/ModalProvider/index.tsx
@@ -77,7 +77,7 @@ export const ModalProvider: React.FC<ModalProviderProps> = (props) => {
   const escIsBound = useRef(false);
 
   const bindEsc = useCallback((e: KeyboardEvent) => {
-    if (e.keyCode === 27) {
+    if (e.key === 'Escape' || e.keyCode === 27) {
       dispatchModalState({
         type: 'CLOSE_LATEST_MODAL',
       })
@@ -194,10 +194,24 @@ export const ModalProvider: React.FC<ModalProviderProps> = (props) => {
     })
   }, [])
 
+  const updateModalLock = useCallback(({slug, lock}: {slug: string, lock: boolean}) => {
+    dispatchModalState({
+      type: 'UPDATE_LOCK_MODAL',
+      payload: {
+        slug,
+        lock,
+      }
+    })
+  }, [])
+
   const isModalOpen = useCallback((slug: string) => {
     return modalState[slug] && modalState[slug].isOpen;
   }, [modalState])
 
+  const isModalLocked = useCallback((slug: string) => {
+    return Boolean(modalState[slug] && modalState[slug].locked);
+  }, [modalState])
+
   const inheritedProps = { ...props };
   delete inheritedProps.children;
 
@@ -225,6 +239,8 @@ export const ModalProvider: React.FC<ModalProviderProps> = (props) => {
           toggleModal,
           setBodyScrollLock,
           setContainerRef,
+          updateModalLock,
+          isModalLocked,
         }}
       >
         {children}
diff --git a/src/ModalProvider/reducer.ts b/src/ModalProvider/reducer.ts
index c8a58fd..c415f73 100644
--- a/src/ModalProvider/reducer.ts
+++ b/src/ModalProvider/reducer.ts
@@ -14,8 +14,16 @@ export type OPEN_MODAL = {
 
 export type CLOSE_MODAL = {
   type: 'CLOSE_MODAL'
+  payload: {
+    slug: string;
+  };
+};
+
+export type UPDATE_LOCK_MODAL = {
+  type: "UPDATE_LOCK_MODAL";
   payload: {
     slug: string
+    lock: boolean
   }
 }
 
@@ -47,6 +55,7 @@ export type Action = UPDATE_MODAL
   | OPEN_MODAL
   | REMOVE_MODAL
   | CLOSE_MODAL
+  | UPDATE_LOCK_MODAL
   | TOGGLE_MODAL
   | CLOSE_LATEST_MODAL
   | CLOSE_ALL_MODALS;
@@ -107,11 +116,15 @@ export const reducer = (
       if (slug) {
         const isCurrentlyOpen = slug in newState && newState[slug].isOpen;
 
+        if (isCurrentlyOpen && newState[slug].locked) {
+          break;
+        }
+
         newState[slug] = {
           ...newState[slug],
           slug,
           openedOn: !isCurrentlyOpen ? Date.now() : undefined,
-          isOpen: !isCurrentlyOpen
+          isOpen: !isCurrentlyOpen,
         };
       }
 
@@ -123,7 +136,7 @@ export const reducer = (
         slug,
       } = payload;
 
-      if (slug) {
+      if (slug && !newState[slug].locked) {
         newState[slug] = {
           ...newState[slug],
           slug,
@@ -135,6 +148,23 @@ export const reducer = (
       break;
     }
 
+    case 'UPDATE_LOCK_MODAL': {
+      const {
+        slug,
+        lock,
+      } = payload;
+
+      if (slug && newState[slug].isOpen) {
+        newState[slug] = {
+          ...newState[slug],
+          slug,
+          locked: lock,
+        };
+      }
+
+      break;
+    }
+
     case 'REMOVE_MODAL': {
       const {
         slug,
@@ -159,7 +189,7 @@ export const reducer = (
           return acc;
         }, undefined);
 
-      if (latestModal) {
+      if (latestModal && !latestModal.locked) {
         newState[latestModal.slug] = {
           ...newState[latestModal.slug],
           isOpen: false,
@@ -174,8 +204,8 @@ export const reducer = (
       newState = Object.entries((newState)).reduce((acc, [key, value]) => {
         acc[key] = {
           ...value,
-          isOpen: false,
-          openedOn: undefined,
+          isOpen: newState[key].locked ? newState[key].isOpen : false,
+          openedOn: newState[key].locked ? newState[key].openedOn : undefined,
         };
 
         return acc;