diff --git a/package-lock.json b/package-lock.json
index 5a558b4..f22dbb9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2239,6 +2239,11 @@
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       }
     },
+    "@popperjs/core": {
+      "version": "2.11.3",
+      "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.11.3.tgz",
+      "integrity": "sha512-8U7hIl7+30XbIrJ0deQMXpXESM1L4yrt6BHok5hzcR0LivivuNkk+tHU1iRVScOwCmQcrOr6kvtIr29MNbQHqQ=="
+    },
     "@protobufjs/aspromise": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/@protobufjs/aspromise/-/aspromise-1.1.2.tgz",
@@ -2815,6 +2820,11 @@
         }
       }
     },
+    "@types/warning": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/@types/warning/-/warning-3.0.0.tgz",
+      "integrity": "sha1-DSUBJorY+ZYrdA04fEZU9fjiPlI="
+    },
     "@types/webpack": {
       "version": "4.41.29",
       "resolved": "https://registry.npmjs.org/@types/webpack/-/webpack-4.41.29.tgz",
@@ -12939,20 +12949,20 @@
       }
     },
     "react-big-calendar": {
-      "version": "0.24.6",
-      "resolved": "https://registry.npmjs.org/react-big-calendar/-/react-big-calendar-0.24.6.tgz",
-      "integrity": "sha512-3t+FSqmaNQr3sAvOcIue+VmNjBV7PNOiGLUidwG0mN6LRPuprO8+poZBq3QM6OqZPu69HY50tCZN8P3BslRUbw==",
+      "version": "0.39.3",
+      "resolved": "https://registry.npmjs.org/react-big-calendar/-/react-big-calendar-0.39.3.tgz",
+      "integrity": "sha512-RLymspfoBeYNBMvKnpMSpHtUAsJhv1Cbp1sE6aE7huQ92xT0mgnFDxUSoWc//C5J8WbYWLtlld521eisNJSjNw==",
       "requires": {
         "@babel/runtime": "^7.1.5",
         "clsx": "^1.0.4",
-        "date-arithmetic": "^4.0.1",
+        "date-arithmetic": "^4.1.0",
         "dom-helpers": "^5.1.0",
         "invariant": "^2.2.4",
         "lodash": "^4.17.11",
         "lodash-es": "^4.17.11",
         "memoize-one": "^5.1.1",
-        "prop-types": "^15.6.2",
-        "react-overlays": "^2.0.0-0",
+        "prop-types": "^15.7.2",
+        "react-overlays": "^4.1.1",
         "uncontrollable": "^7.0.0"
       }
     },
@@ -13290,24 +13300,18 @@
       "integrity": "sha512-QucQrgOLmF44CD4EFDLZ9ICrbHEZwztjALgx1GsNmMWZrAtmzDLarG+T1TK2OSE4w1eHfkXtmEhQibjbt0mT2g=="
     },
     "react-overlays": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/react-overlays/-/react-overlays-2.1.1.tgz",
-      "integrity": "sha512-gaQJwmb8Ij2IGVt4D1HmLtl4A0mDVYxlsv/8i0dHWK7Mw0kNat6ORelbbEWzaXTK1TqMeQtJw/jraL3WOADz3w==",
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/react-overlays/-/react-overlays-4.1.1.tgz",
+      "integrity": "sha512-WtJifh081e6M24KnvTQoNjQEpz7HoLxqt8TwZM7LOYIkYJ8i/Ly1Xi7RVte87ZVnmqQ4PFaFiNHZhSINPSpdBQ==",
       "requires": {
-        "@babel/runtime": "^7.4.5",
-        "@restart/hooks": "^0.3.12",
-        "dom-helpers": "^5.1.0",
-        "popper.js": "^1.15.0",
+        "@babel/runtime": "^7.12.1",
+        "@popperjs/core": "^2.5.3",
+        "@restart/hooks": "^0.3.25",
+        "@types/warning": "^3.0.0",
+        "dom-helpers": "^5.2.0",
         "prop-types": "^15.7.2",
         "uncontrollable": "^7.0.0",
         "warning": "^4.0.3"
-      },
-      "dependencies": {
-        "popper.js": {
-          "version": "1.16.1",
-          "resolved": "https://registry.npmjs.org/popper.js/-/popper.js-1.16.1.tgz",
-          "integrity": "sha512-Wb4p1J4zyFTbM+u6WuO4XstYx4Ky9Cewe4DWrel7B0w6VVICvPwdOpotjzcf6eD8TsckVnIMNONQyPIUFOUbCQ=="
-        }
       }
     },
     "react-perfect-scrollbar": {
diff --git a/package.json b/package.json
index 0a20e30..f8b5870 100644
--- a/package.json
+++ b/package.json
@@ -70,7 +70,7 @@
     "react-apexcharts": "^1.3.7",
     "react-app-polyfill": "^1.0.6",
     "react-beautiful-dnd": "^13.0.0",
-    "react-big-calendar": "^0.24.1",
+    "react-big-calendar": "^0.39.3",
     "react-chartjs-2": "^2.9.0",
     "react-dom": "^16.13.1",
     "react-draft-wysiwyg": "^1.14.4",