diff --git a/Gemfile.lock b/Gemfile.lock
index 8a2ea4f62d..b6c1fc707d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -74,7 +74,7 @@ GEM
       public_suffix (>= 2.0.2, < 5.0)
     api-pagination (4.8.2)
     arel (9.0.0)
-    ast (2.4.0)
+    ast (2.4.1)
     autoprefixer-rails (9.7.3)
       execjs
     awesome_print (1.8.0)
@@ -261,14 +261,14 @@ GEM
     http_parser.rb (0.6.0)
     httparty (0.16.2)
       multi_xml (>= 0.5.2)
-    i18n (1.8.2)
+    i18n (1.8.3)
       concurrent-ruby (~> 1.0)
     i18n-country-translations (1.4.1)
       i18n (>= 0.9.3, < 2)
       railties (>= 5.0)
     i18n-js (3.5.0)
       i18n (>= 0.6.6)
-    i18n-tasks (0.9.29)
+    i18n-tasks (0.9.31)
       activesupport (>= 4.0.2)
       ast (>= 2.1.0)
       erubi
@@ -323,7 +323,7 @@ GEM
       railties (>= 4)
       request_store (~> 1.0)
     logstash-event (1.2.02)
-    loofah (2.5.0)
+    loofah (2.6.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.0.13)
@@ -636,7 +636,7 @@ GEM
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.7.6)
-    unicode-display_width (1.6.0)
+    unicode-display_width (1.6.1)
     unicode_utils (1.4.0)
     uniform_notifier (1.13.0)
     user_agent_parser (2.5.2)
diff --git a/config/locales/.editorconfig b/config/locales/.editorconfig
new file mode 100644
index 0000000000..2acfa0c44e
--- /dev/null
+++ b/config/locales/.editorconfig
@@ -0,0 +1,4 @@
+# Do not trim trailing whitespace for translation files, because it breaks normalization
+root = true
+
+trim_trailing_whitespace = false
diff --git a/config/locales/.translation_io b/config/locales/.translation_io
index 8e6d6c321f..adb04fd4f5 100644
--- a/config/locales/.translation_io
+++ b/config/locales/.translation_io
@@ -1,2 +1,2 @@
 ---
-timestamp: 1593012881
+timestamp: 1593015278
diff --git a/config/locales/en.yml b/config/locales/en.yml
index f6fe32e254..c47a2ea8c2 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -2099,6 +2099,7 @@ en:
     - Fri
     - Sat
     abbr_month_names:
+    - 
     - Jan
     - Feb
     - Mar
@@ -2124,6 +2125,7 @@ en:
       long: "%B %d, %Y"
       short: "%b %d"
     month_names:
+    - 
     - January
     - February
     - March
diff --git a/config/locales/translation.nl.yml b/config/locales/translation.nl.yml
index 31ae095ac1..93b33ccbc4 100644
--- a/config/locales/translation.nl.yml
+++ b/config/locales/translation.nl.yml
@@ -31,7 +31,7 @@ nl:
     - vr
     - za
     month_names:
-    - Januari
+    -
     - januari
     - februari
     - maart
@@ -43,8 +43,9 @@ nl:
     - september
     - oktober
     - november
+    - december
     abbr_month_names:
-    - Jan
+    -
     - jan
     - feb
     - mrt
@@ -56,6 +57,7 @@ nl:
     - sep
     - okt
     - nov
+    - dec
   time:
     am: "'s ochtends"
     pm: "'s middags"