diff --git a/packages/shell-bson-parser/src/index.spec.ts b/packages/shell-bson-parser/src/index.spec.ts
index a30bd848..80f6bd62 100644
--- a/packages/shell-bson-parser/src/index.spec.ts
+++ b/packages/shell-bson-parser/src/index.spec.ts
@@ -425,6 +425,7 @@ describe('@mongodb-js/shell-bson-parser', function () {
           setUTCSeconds: (${newDate}).setUTCSeconds(59),
           setYear: (${newDate}).setYear(96),
           toISOString: (${newDate}).toISOString(),
+          valueOf: (${newDate}.valueOf()),
        }`;
               expect(parse(input, options)).to.deep.equal({
                 getDate: new (Date as any)(...args).getDate(),
@@ -469,6 +470,7 @@ describe('@mongodb-js/shell-bson-parser', function () {
                 setUTCSeconds: new (Date as any)(...args).setUTCSeconds(59),
                 setYear: new (Date as any)(...args).setYear(96), // setYear is deprecated
                 toISOString: new (Date as any)(...args).toISOString(),
+                valueOf: new (Date as any)(...args).valueOf(),
               });
             });
 
diff --git a/packages/shell-bson-parser/src/scope.ts b/packages/shell-bson-parser/src/scope.ts
index a1c3ce04..7368e7a6 100644
--- a/packages/shell-bson-parser/src/scope.ts
+++ b/packages/shell-bson-parser/src/scope.ts
@@ -233,6 +233,7 @@ const ALLOWED_CLASS_EXPRESSIONS: ClassExpressions = lookupMap({
       setUTCSeconds: true,
       setYear: true,
       toISOString: true,
+      valueOf: true,
     }),
   }),
   ISODate: lookupMap({