diff --git a/package.json b/package.json
index 938e106..544c81a 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "@angular/platform-browser-dynamic": "~7.2.0",
     "@angular/router": "~7.2.0",
     "bootstrap": "^4.1.3",
-    "bootstrap-sass": "~3.3.7",
+    "bootstrap-sass": "^3.4.1",
     "chart.js": "^2.6.0",
     "core-js": "^2.5.4",
     "font-awesome": "^4.7.0",
diff --git a/yarn.lock b/yarn.lock
index e04d75a..c142439 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1122,10 +1122,10 @@ bonjour@^3.5.0:
     multicast-dns "^6.0.1"
     multicast-dns-service-types "^1.1.0"
 
-bootstrap-sass@~3.3.7:
-  version "3.3.7"
-  resolved "https://registry.yarnpkg.com/bootstrap-sass/-/bootstrap-sass-3.3.7.tgz#6596c7ab40f6637393323ab0bc80d064fc630498"
-  integrity sha1-ZZbHq0D2Y3OTMjqwvIDQZPxjBJg=
+bootstrap-sass@^3.4.1:
+  version "3.4.1"
+  resolved "https://registry.yarnpkg.com/bootstrap-sass/-/bootstrap-sass-3.4.1.tgz#6843c73b1c258a0ac5cb2cc6f6f5285b664a8e9a"
+  integrity sha512-p5rxsK/IyEDQm2CwiHxxUi0MZZtvVFbhWmyMOt4lLkA4bujDA1TGoKT0i1FKIWiugAdP+kK8T5KMDFIKQCLYIA==
 
 bootstrap@^4.1.3:
   version "4.3.1"