diff --git a/package-lock.json b/package-lock.json
old mode 100755
new mode 100644
index e91829c..1fbe2a8
--- a/package-lock.json
+++ b/package-lock.json
@@ -367,7 +367,7 @@
       "dependencies": {
         "abstract-leveldown": {
           "version": "4.0.3",
-          "resolved": "http://registry.npmjs.org/abstract-leveldown/-/abstract-leveldown-4.0.3.tgz",
+          "resolved": "https://registry.npmjs.org/abstract-leveldown/-/abstract-leveldown-4.0.3.tgz",
           "integrity": "sha512-qsIHFQy0u17JqSY+3ZUT+ykqxYY17yOfvAsLkFkw8kSQqi05d1jyj0bCuSX6sjYlXuY9cKpgUt5EudQdP4aXyA==",
           "requires": {
             "xtend": "4.0.1"
@@ -1183,7 +1183,7 @@
         },
         "rimraf": {
           "version": "2.4.5",
-          "resolved": "http://registry.npmjs.org/rimraf/-/rimraf-2.4.5.tgz",
+          "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.4.5.tgz",
           "integrity": "sha1-7nEM5dk6j9uFb7Xqj/Di11k0sto=",
           "optional": true,
           "requires": {
@@ -1730,7 +1730,7 @@
     },
     "semver": {
       "version": "5.3.0",
-      "resolved": "http://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
       "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8="
     },
     "send": {
@@ -1928,9 +1928,9 @@
       "resolved": "http://registry.npmjs.org/tar/-/tar-2.2.1.tgz",
       "integrity": "sha1-jk0qJWwOIYXGsYrWlK7JaLg8sdE=",
       "requires": {
-        "block-stream": "0.0.9",
-        "fstream": "1.0.11",
-        "inherits": "2.0.3"
+        "block-stream": "*",
+        "fstream": "^1.0.2",
+        "inherits": "2"
       }
     },
     "tar-fs": {