diff --git a/packages/mermaid/src/diagrams/timeline/parser/timeline.jison b/packages/mermaid/src/diagrams/timeline/parser/timeline.jison
index 8bf4aea6e5..89bfd06f45 100644
--- a/packages/mermaid/src/diagrams/timeline/parser/timeline.jison
+++ b/packages/mermaid/src/diagrams/timeline/parser/timeline.jison
@@ -18,7 +18,7 @@
 \#[^\n]*                /* skip comments */
 
 "timeline"               return 'timeline';
-"title"\s[^\n;]+       return 'title';
+"title"\s[^\n]+       return 'title';
 accTitle\s*":"\s*                                               { this.begin("acc_title");return 'acc_title'; }
 <acc_title>(?!\n|;|#)*[^\n]*                                    { this.popState(); return "acc_title_value"; }
 accDescr\s*":"\s*                                               { this.begin("acc_descr");return 'acc_descr'; }
@@ -26,11 +26,11 @@ accDescr\s*":"\s*                                               { this.begin("ac
 accDescr\s*"{"\s*                                { this.begin("acc_descr_multiline");}
 <acc_descr_multiline>[\}]                       { this.popState(); }
 <acc_descr_multiline>[^\}]*                     return "acc_descr_multiline_value";
-"section"\s[^:\n;]+    return 'section';
+"section"\s[^:\n]+    return 'section';
 
 // event starting with "==>" keyword
-":"\s[^:\n;]+        return 'event';
-[^#:\n;]+               return 'period';
+":"\s[^:\n]+        return 'event';
+[^#:\n]+               return 'period';
 
 
 <<EOF>>                 return 'EOF';
diff --git a/packages/mermaid/src/diagrams/timeline/timeline.spec.js b/packages/mermaid/src/diagrams/timeline/timeline.spec.js
index e13d15f077..a7005cada9 100644
--- a/packages/mermaid/src/diagrams/timeline/timeline.spec.js
+++ b/packages/mermaid/src/diagrams/timeline/timeline.spec.js
@@ -1,7 +1,7 @@
+import { setLogLevel } from '../../diagram-api/diagramAPI.js';
+import * as commonDb from '../common/commonDb.js';
 import { parser as timeline } from './parser/timeline.jison';
 import * as timelineDB from './timelineDb.js';
-import * as commonDb from '../common/commonDb.js';
-import { setLogLevel } from '../../diagram-api/diagramAPI.js';
 
 describe('when parsing a timeline ', function () {
   beforeEach(function () {
@@ -10,7 +10,7 @@ describe('when parsing a timeline ', function () {
     setLogLevel('trace');
   });
   describe('Timeline', function () {
-    it('TL-1 should handle a simple section definition abc-123', function () {
+    it('should handle a simple section definition abc-123', function () {
       let str = `timeline
     section abc-123`;
 
@@ -18,7 +18,7 @@ describe('when parsing a timeline ', function () {
       expect(timelineDB.getSections()).to.deep.equal(['abc-123']);
     });
 
-    it('TL-2 should handle a simple section and only two tasks', function () {
+    it('should handle a simple section and only two tasks', function () {
       let str = `timeline
     section abc-123
     task1
@@ -30,7 +30,7 @@ describe('when parsing a timeline ', function () {
       });
     });
 
-    it('TL-3 should handle a two section and two coressponding tasks', function () {
+    it('should handle a two section and two coressponding tasks', function () {
       let str = `timeline
     section abc-123
     task1
@@ -51,7 +51,7 @@ describe('when parsing a timeline ', function () {
       });
     });
 
-    it('TL-4 should handle a section, and task and its events', function () {
+    it('should handle a section, and task and its events', function () {
       let str = `timeline
     section abc-123
       task1: event1
@@ -75,7 +75,7 @@ describe('when parsing a timeline ', function () {
       });
     });
 
-    it('TL-5 should handle a section, and task and its multi line events', function () {
+    it('should handle a section, and task and its multi line events', function () {
       let str = `timeline
     section abc-123
       task1: event1
@@ -100,7 +100,25 @@ describe('when parsing a timeline ', function () {
       });
     });
 
-    it('TL-6 should handle a title, section, task, and events with hashtags', function () {
+    it('should handle a title, section, task, and events with semicolons', function () {
+      let str = `timeline
+      title ;my;title;
+      section ;a;bc-123;
+      ;ta;sk1;: ;ev;ent1; : ;ev;ent2; : ;ev;ent3;
+   `;
+      timeline.parse(str);
+      expect(commonDb.getDiagramTitle()).equal(';my;title;');
+      expect(timelineDB.getSections()).to.deep.equal([';a;bc-123;']);
+      expect(timelineDB.getTasks()[0].events).toMatchInlineSnapshot(`
+        [
+          ";ev;ent1; ",
+          ";ev;ent2; ",
+          ";ev;ent3;",
+        ]
+      `);
+    });
+
+    it('should handle a title, section, task, and events with hashtags', function () {
       let str = `timeline
       title #my#title#
       section #a#bc-123#
@@ -110,9 +128,13 @@ describe('when parsing a timeline ', function () {
       expect(commonDb.getDiagramTitle()).equal('#my#title#');
       expect(timelineDB.getSections()).to.deep.equal(['#a#bc-123#']);
       expect(timelineDB.getTasks()[0].task).equal('task1');
-      expect(timelineDB.getTasks()[0].events[0]).equal('#ev#ent1# ');
-      expect(timelineDB.getTasks()[0].events[1]).equal('#ev#ent2# ');
-      expect(timelineDB.getTasks()[0].events[2]).equal('#ev#ent3#');
+      expect(timelineDB.getTasks()[0].events).toMatchInlineSnapshot(`
+        [
+          "#ev#ent1# ",
+          "#ev#ent2# ",
+          "#ev#ent3#",
+        ]
+      `);
     });
   });
 });