diff --git a/gulpfile.js b/gulpfile.js
index 7a83c5e8b..93040b849 100755
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -396,16 +396,16 @@ function csrf() {
 
 function pdfjs() {
     const web = gulp.src([
-        config.nodeDirectory + '/pdf.js/demo/vue/public/pdfjs-prebuilt/web/**/*',
-        '!' + config.nodeDirectory + '/pdf.js/demo/vue/public/pdfjs-prebuilt/web/cmaps/*',
-        '!' + config.nodeDirectory + '/pdf.js/demo/vue/public/pdfjs-prebuilt/web/*.map',
-        '!' + config.nodeDirectory + '/pdf.js/demo/vue/public/pdfjs-prebuilt/web/*.pdf',
+        config.nodeDirectory + '/pdfjs-viewer-element/dist/pdfjs-4.0.379-dist/web/**/*',
+        '!' + config.nodeDirectory + '/pdfjs-viewer-element/dist/pdfjs-4.0.379-dist/web/cmaps/*',
+        '!' + config.nodeDirectory + '/pdfjs-viewer-element/dist/pdfjs-4.0.379-dist/web/*.map',
+        '!' + config.nodeDirectory + '/pdfjs-viewer-element/dist/pdfjs-4.0.379-dist/web/*.pdf',
     ])
         .pipe(gulp.dest(config.production + '/pdfjs/web'));
 
     const build = gulp.src([
-        config.nodeDirectory + '/pdf.js/demo/vue/public/pdfjs-prebuilt/build/*',
-        '!' + config.nodeDirectory + '/pdf.js/demo/vue/public/pdfjs-prebuilt/build/*.map',
+        config.nodeDirectory + '/pdfjs-viewer-element/dist/pdfjs-4.0.379-dist/build/*',
+        '!' + config.nodeDirectory + '/pdfjs-viewer-element/dist/pdfjs-4.0.379-dist/build/*.map',
     ])
         .pipe(gulp.dest(config.production + '/pdfjs/build'));
 
diff --git a/package.json b/package.json
index 8360b9a98..e7390e197 100755
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
         "moment": "^2.18.1",
         "numeral": "^2.0.6",
         "parsleyjs": "^2.7.2",
-        "pdf.js": "alekswebnet/pdfjs-viewer-element",
+        "pdfjs-viewer-element": "2.5.4",
         "pwstrength-bootstrap": "^3.0.4",
         "select2": "^4.0.3",
         "select2-bootstrap-theme": "^0.1.0-beta.10",