diff --git a/package-lock.json b/package-lock.json
index f059330..fee7f07 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -488,7 +488,8 @@
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+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
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@@ -558,9 +559,9 @@
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-      "resolved": "https://registry.npmjs.org/bootstrap-sass/-/bootstrap-sass-3.3.7.tgz",
-      "integrity": "sha1-ZZbHq0D2Y3OTMjqwvIDQZPxjBJg=",
+      "version": "3.4.1",
+      "resolved": "https://registry.npmjs.org/bootstrap-sass/-/bootstrap-sass-3.4.1.tgz",
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@@ -3261,7 +3262,8 @@
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-          "resolved": "",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
+          "integrity": "sha512-s5kLOcnH0XqDO+FvuaLX8DDjZ18CGFk7VygH40QoKPUQhW4e2rvM0rwUq0t8IQDOwYSeLK01U90OjzBTme2QqA==",
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         "micromatch": {
@@ -6578,7 +6580,8 @@
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-          "resolved": "",
+          "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-6.0.2.tgz",
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diff --git a/package.json b/package.json
index ab3a0fe..5403635 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
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   "homepage": "https://github.com/leanfj/leanfj.github.io#readme",
   "devDependencies": {
-    "bootstrap-sass": "^3.3.7",
+    "bootstrap-sass": "^3.4.1",
     "breakpoint-sass": "^2.7.1",
     "browser-sync": "^2.26.7",
     "font-awesome": "^4.7.0",