diff --git a/frontend/src/metadata/components/cell-editors/long-text-editor/api.js b/frontend/src/metadata/components/cell-editors/long-text-editor/api.js
index 952b369794..ce92539069 100644
--- a/frontend/src/metadata/components/cell-editors/long-text-editor/api.js
+++ b/frontend/src/metadata/components/cell-editors/long-text-editor/api.js
@@ -60,7 +60,7 @@ class LongtextAPI {
 
   isInternalDirLink(url) {
     // eslint-disable-next-line
-    var re = new RegExp(this.serviceUrl + '/library/' + '[0-9a-f\-]{36}.*');
+    var re = new RegExp(this.serviceUrl + '/library/' + '[0-9a-f-]{36}.*');
     return re.test(url);
   }
 
diff --git a/frontend/src/pages/markdown-editor/editor-api.js b/frontend/src/pages/markdown-editor/editor-api.js
index 038903ac8a..b858bfabfe 100644
--- a/frontend/src/pages/markdown-editor/editor-api.js
+++ b/frontend/src/pages/markdown-editor/editor-api.js
@@ -95,7 +95,7 @@ class EditorApi {
 
   isInternalDirLink(url) {
     // eslint-disable-next-line
-    var re = new RegExp(serviceUrl + '/library/' + '[0-9a-f\-]{36}.*');
+    var re = new RegExp(serviceUrl + '/library/' + '[0-9a-f-]{36}.*');
     return re.test(url);
   }
 
diff --git a/frontend/src/utils/utils.js b/frontend/src/utils/utils.js
index 7aac7e2251..1cf61158d3 100644
--- a/frontend/src/utils/utils.js
+++ b/frontend/src/utils/utils.js
@@ -1088,7 +1088,7 @@ export const Utils = {
 
   isInternalMarkdownLink: function (url, repoID) {
     // eslint-disable-next-line
-    var re = new RegExp(serviceURL + '/lib/' + repoID + '.*\.md$');
+    var re = new RegExp(serviceURL + '/lib/' + repoID + '.*(\\.md)$');
     return re.test(url);
   },
 
@@ -1099,7 +1099,7 @@ export const Utils = {
 
   getPathFromInternalMarkdownLink: function (url, repoID) {
     // eslint-disable-next-line
-    var re = new RegExp(serviceURL + '/lib/' + repoID + '/file' + '(.*\.md)');
+    var re = new RegExp(serviceURL + '/lib/' + repoID + '/file' + '.*(\\.md)$');
     var array = re.exec(url);
     var path = decodeURIComponent(array[1]);
     return path;
@@ -1117,7 +1117,7 @@ export const Utils = {
   isWikiInternalMarkdownLink: function (url, slug) {
     slug = encodeURIComponent(slug);
     // eslint-disable-next-line
-    var re = new RegExp(serviceURL + '/published/' + slug + '.*\.md$');
+    var re = new RegExp(serviceURL + '/published/' + slug + '.*(\\.md)$');
     return re.test(url);
   },
 
@@ -1130,7 +1130,7 @@ export const Utils = {
   getPathFromWikiInternalMarkdownLink: function (url, slug) {
     slug = encodeURIComponent(slug);
     // eslint-disable-next-line
-    var re = new RegExp(serviceURL + '/published/' + slug + '(.*\.md)');
+    var re = new RegExp(serviceURL + '/published/' + slug + '.*(\\.md)$');
     var array = re.exec(url);
     var path = array[1];
     try {