diff --git a/package-lock.json b/package-lock.json
index 20c824dc..dfbaf679 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -122,9 +122,9 @@
             }
         },
         "extend": {
-            "version": "3.0.1",
-            "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.1.tgz",
-            "integrity": "sha1-p1Xqe8Gt/MWjHOfnYtuq3F5jZEQ=",
+            "version": "3.0.2",
+            "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.2.tgz",
+            "integrity": "sha512-fjquC59cD7CyW6urNXK0FBufkZcoiGG80wTuPujX590cB5Ttln20E2UB4S/WARVqhXffZl2LNgS+gQdPIIim/g==",
             "optional": true
         },
         "extsprintf": {
@@ -259,9 +259,9 @@
             }
         },
         "less": {
-            "version": "3.5.3",
-            "resolved": "https://registry.npmjs.org/less/-/less-3.5.3.tgz",
-            "integrity": "sha512-MMGXfVYMORHyfwWGOP04HNnDxX874A329FMZEiMuho+QvOXJMyjlsmnf3qUxr1KmwM1E8mVo2bOPbT4A8aF61w==",
+            "version": "3.8.0",
+            "resolved": "https://registry.npmjs.org/less/-/less-3.8.0.tgz",
+            "integrity": "sha512-746DPDyL+Wsjo7h/Z3t+A3Mg/mpDTaxW4puZyLhCQJjWJJvHggN735orjuCLIYgo7jKqv1zWLiQrxkuUOg5oGA==",
             "requires": {
                 "errno": "^0.1.1",
                 "graceful-fs": "^4.1.2",
@@ -280,18 +280,18 @@
             "optional": true
         },
         "mime-db": {
-            "version": "1.33.0",
-            "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.33.0.tgz",
-            "integrity": "sha512-BHJ/EKruNIqJf/QahvxwQZXKygOQ256myeN/Ew+THcAa5q+PjyTTMMeNQC4DZw5AwfvelsUrA6B67NKMqXDbzQ==",
+            "version": "1.35.0",
+            "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.35.0.tgz",
+            "integrity": "sha512-JWT/IcCTsB0Io3AhWUMjRqucrHSPsSf2xKLaRldJVULioggvkJvggZ3VXNNSRkCddE6D+BUI4HEIZIA2OjwIvg==",
             "optional": true
         },
         "mime-types": {
-            "version": "2.1.18",
-            "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.18.tgz",
-            "integrity": "sha512-lc/aahn+t4/SWV/qcmumYjymLsWfN3ELhpmVuUFjgsORruuZPVSwAQryq+HHGvO/SI2KVX26bx+En+zhM8g8hQ==",
+            "version": "2.1.19",
+            "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.19.tgz",
+            "integrity": "sha512-P1tKYHVSZ6uFo26mtnve4HQFE3koh1UWVkp8YUC+ESBHe945xWSoXuHHiGarDqcEZ+whpCDnlNw5LON0kLo+sw==",
             "optional": true,
             "requires": {
-                "mime-db": "~1.33.0"
+                "mime-db": "~1.35.0"
             }
         },
         "minimist": {
diff --git a/package.json b/package.json
index 505116eb..37692184 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,6 @@
     "name": "dailygraphics",
     "version": "1.0.0",
     "dependencies": {
-        "less": "~3.5.3"
+        "less": "~3.8.0"
     }
 }