diff --git a/package-lock.json b/package-lock.json
index 86f7dd4..c1f5204 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4964,7 +4964,8 @@
                 "ansi-regex": {
                     "version": "2.1.1",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "aproba": {
                     "version": "1.2.0",
@@ -5379,7 +5380,8 @@
                 "safe-buffer": {
                     "version": "5.1.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "safer-buffer": {
                     "version": "2.1.2",
@@ -5435,6 +5437,7 @@
                     "version": "3.0.1",
                     "bundled": true,
                     "dev": true,
+                    "optional": true,
                     "requires": {
                         "ansi-regex": "^2.0.0"
                     }
@@ -5478,12 +5481,14 @@
                 "wrappy": {
                     "version": "1.0.2",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 },
                 "yallist": {
                     "version": "3.0.3",
                     "bundled": true,
-                    "dev": true
+                    "dev": true,
+                    "optional": true
                 }
             }
         },
diff --git a/projects/angular-contenteditable-accessor/src/lib/contenteditable-value-accessor.ts b/projects/angular-contenteditable-accessor/src/lib/contenteditable-value-accessor.ts
index fb72a9f..e80ed65 100644
--- a/projects/angular-contenteditable-accessor/src/lib/contenteditable-value-accessor.ts
+++ b/projects/angular-contenteditable-accessor/src/lib/contenteditable-value-accessor.ts
@@ -147,13 +147,12 @@ export class ContenteditableValueAccessor
     }
 
     /*
-     * null and other falsy control values are treated as empty string to
-     * prevent IE11 outputting 'null', also single <br> is replaced with empty
-     * string when passed to the control
+     * null is treated as empty string to prevent IE11 outputting 'null',
+     * also single <br> is replaced with empty string when passed to the control
      */
-    private static processValue(value: string | null): string {
-        const processed = value || '';
+    private static processValue(value: unknown): string {
+        const processed = String(value == null ? '' : value);
 
-        return processed.toString().trim() === '<br>' ? '' : processed;
+        return processed.trim() === '<br>' ? '' : processed;
     }
 }