diff --git a/inst/htmlwidgets/lib/leaflet/package-lock.json b/inst/htmlwidgets/lib/leaflet/package-lock.json
index 74eec2c..87fa9a3 100644
--- a/inst/htmlwidgets/lib/leaflet/package-lock.json
+++ b/inst/htmlwidgets/lib/leaflet/package-lock.json
@@ -94,17 +94,19 @@
         "brace-expansion": "^1.1.7"
       }
     },
-    "minimist": {
-      "version": "0.0.8",
-      "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-      "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
-    },
     "mkdirp": {
-      "version": "0.5.1",
-      "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+      "version": "0.5.6",
+      "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
+      "integrity": "sha512-FP+p8RB8OWpF3YZBCrP5gtADmtXApB5AMLn+vdyA+PyxCjrCs00mjyUozssO33cwDeT3wNGdLxJ5M//YqtHAJw==",
       "requires": {
-        "minimist": "0.0.8"
+        "minimist": "^1.2.6"
+      },
+      "dependencies": {
+        "minimist": {
+          "version": "1.2.8",
+          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
+          "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA=="
+        }
       }
     },
     "path-parse": {
@@ -154,7 +156,7 @@
         },
         "rollup-pluginutils": {
           "version": "1.5.2",
-          "resolved": "http://registry.npmjs.org/rollup-pluginutils/-/rollup-pluginutils-1.5.2.tgz",
+          "resolved": "https://registry.npmjs.org/rollup-pluginutils/-/rollup-pluginutils-1.5.2.tgz",
           "integrity": "sha1-HhVud4+UtyVb+hs9AXi+j1xVJAg=",
           "requires": {
             "estree-walker": "^0.2.1",