diff --git a/stockmarket-angular8/package-lock.json b/stockmarket-angular8/package-lock.json
index 8d3604c..f175f77 100644
--- a/stockmarket-angular8/package-lock.json
+++ b/stockmarket-angular8/package-lock.json
@@ -5134,15 +5134,13 @@
     "fast-deep-equal": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
-      "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
+      "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk=",
+      "dev": true
     },
     "fast-json-patch": {
-      "version": "2.2.1",
-      "resolved": "https://registry.npmjs.org/fast-json-patch/-/fast-json-patch-2.2.1.tgz",
-      "integrity": "sha512-4j5uBaTnsYAV5ebkidvxiLUYOwjQ+JSFljeqfTxCrH9bDmlCQaOJFS84oDJ2rAXZq2yskmk3ORfoP9DCwqFNig==",
-      "requires": {
-        "fast-deep-equal": "^2.0.1"
-      }
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/fast-json-patch/-/fast-json-patch-3.1.1.tgz",
+      "integrity": "sha512-vf6IHUX2SBcA+5/+4883dsIjpBTqmfBjmYiWK1savxQmFk4JfBMLa7ynTYOs1Rolp/T1betJxHiGD3g1Mn8lUQ=="
     },
     "fast-json-stable-stringify": {
       "version": "2.0.0",
diff --git a/stockmarket-angular8/package.json b/stockmarket-angular8/package.json
index c0b7ba7..e9b39bc 100644
--- a/stockmarket-angular8/package.json
+++ b/stockmarket-angular8/package.json
@@ -22,7 +22,7 @@
     "@angular/platform-browser-dynamic": "~8.2.14",
     "@angular/router": "~8.2.14",
     "core-js": "^2.5.4",
-    "fast-json-patch": "^2.0.3",
+    "fast-json-patch": "^3.1.1",
     "rxjs": "~6.5.3",
     "streamdataio-js-sdk": "^2.0.2",
     "tslib": "^1.9.0",