diff --git a/packages/html-parser/src/html-parser.test.ts b/packages/html-parser/src/html-parser.test.ts
index 75cc64df..e6983799 100644
--- a/packages/html-parser/src/html-parser.test.ts
+++ b/packages/html-parser/src/html-parser.test.ts
@@ -501,6 +501,14 @@ describe('HtmlMessageEntityParser', () => {
                 )
             })
 
+            it('should handle numbers and Longs', () => {
+                test(
+                    htm`a number ${123123} and a long ${Long.fromNumber(456456)}`,
+                    [],
+                    'a number 123123 and a long 456456',
+                )
+            })
+
             it('should handle interpolation into attrs', () => {
                 test(
                     htm`<a href="${'https'}://example.com/&quot;${'foo'}/bar/${'baz'}?foo=bar&baz=${'egg'}">link</a>`,
@@ -526,7 +534,7 @@ describe('HtmlMessageEntityParser', () => {
                     'user',
                 )
                 test(
-                    htm`<tg-emoji id="${'123123123123'}">🚀</tg-emoji>`,
+                    htm`<tg-emoji id="${Long.fromString('123123123123')}">🚀</tg-emoji>`,
                     [
                         createEntity('messageEntityCustomEmoji', 0, 2, {
                             documentId: Long.fromString('123123123123'),
diff --git a/packages/html-parser/src/index.ts b/packages/html-parser/src/index.ts
index 34d30af4..c6de4896 100644
--- a/packages/html-parser/src/index.ts
+++ b/packages/html-parser/src/index.ts
@@ -20,7 +20,7 @@ function escape(str: string, quote = false): string {
 
 function parse(
     strings: TemplateStringsArray | string,
-    ...sub: (InputText | MessageEntity | boolean | number | undefined | null)[]
+    ...sub: (InputText | MessageEntity | Long | boolean | number | undefined | null)[]
 ): TextWithEntities {
     const stacks: Record<string, tl.Mutable<tl.TypeMessageEntity>[]> = {}
     const entities: tl.TypeMessageEntity[] = []
@@ -250,6 +250,7 @@ function parse(
 
             if (typeof it === 'string') text = it
             else if (typeof it === 'number') text = it.toString()
+            else if (Long.isLong(it)) text = it.toString(10)
             else {
                 // obviously we can't have entities inside attributes, so just use the text
                 text = it.text
@@ -261,6 +262,8 @@ function parse(
 
         if (typeof it === 'string' || typeof it === 'number') {
             pendingText += it
+        } else if (Long.isLong(it)) {
+            pendingText += it.toString(10)
         } else {
             // TextWithEntities or MessageEntity
             const text = it.text
@@ -451,7 +454,7 @@ export const html: {
      */
     (
         strings: TemplateStringsArray,
-        ...sub: (InputText | MessageEntity | boolean | number | undefined | null)[]
+        ...sub: (InputText | MessageEntity | boolean | Long | number | undefined | null)[]
     ): TextWithEntities
     /**
      * A variant taking a plain JS string as input