diff --git a/Gemfile b/Gemfile
index 8851d5d2d..4dc6846ca 100644
--- a/Gemfile
+++ b/Gemfile
@@ -62,7 +62,7 @@ gem "rack-cors", "1.1.1", require: "rack/cors"
 
 gem "autoprefixer-rails",     "10.2.4.0"
 gem "bootstrap-sass",         "3.4.1"
-gem "bootstrap-switch-rails", "3.3.5"
+gem "bootstrap-switch-rails", "3.3.3" # 3.3.4 and 3.3.5 is broken, see https://github.com/Bttstrp/bootstrap-switch/issues/691
 gem "compass-rails",          "3.1.0"
 gem "sass-rails",             "5.0.7"
 gem "sprockets-rails",        "3.2.1"
@@ -259,6 +259,8 @@ group :development do
   gem "simplecov", "0.21.2", require: false
 
   gem "turbo_dev_assets", "0.0.2"
+
+  gem "listen", "3.5.1"
 end
 
 group :test do
diff --git a/Gemfile.lock b/Gemfile.lock
index f1ce444d5..ef0b2c3d8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -81,7 +81,7 @@ GEM
     bootstrap-sass (3.4.1)
       autoprefixer-rails (>= 5.2.1)
       sassc (>= 2.0.0)
-    bootstrap-switch-rails (3.3.5)
+    bootstrap-switch-rails (3.3.3)
     buftok (0.2.0)
     builder (3.2.4)
     byebug (11.1.3)
@@ -381,6 +381,9 @@ GEM
     kostya-sigar (2.0.8)
     leaflet-rails (1.6.0)
       rails (>= 4.2.0)
+    listen (3.5.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     little-plugger (1.1.4)
     logging (2.3.0)
       little-plugger (~> 1.1)
@@ -793,7 +796,7 @@ DEPENDENCIES
   asset_sync (= 2.11.0)
   autoprefixer-rails (= 10.2.4.0)
   bootstrap-sass (= 3.4.1)
-  bootstrap-switch-rails (= 3.3.5)
+  bootstrap-switch-rails (= 3.3.3)
   capybara (= 3.35.3)
   carrierwave (= 1.3.2)
   chrome_remote (= 0.3.0)
@@ -833,6 +836,7 @@ DEPENDENCIES
   json-schema (= 2.8.1)
   json-schema-rspec (= 0.0.4)
   leaflet-rails (= 1.6.0)
+  listen (= 3.5.1)
   logging-rails (= 0.6.0)
   markdown-it-html5-embed (= 1.0.0)
   markerb (= 1.1.0)