diff --git a/package-lock.json b/package-lock.json
index 35536b58..a530aca3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "10.3.1",
       "license": "MIT",
       "dependencies": {
-        "pdfjs-dist": "^4.5.136",
+        "pdfjs-dist": "4.5.136",
         "tslib": "^2.3.0"
       },
       "devDependencies": {
diff --git a/package.json b/package.json
index 696f66a8..bb06d006 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
   },
   "homepage": "https://github.com/VadimDez/ng2-pdf-viewer#readme",
   "dependencies": {
-    "pdfjs-dist": "^4.5.136",
+    "pdfjs-dist": "4.5.136",
     "tslib": "^2.3.0"
   },
   "devDependencies": {