diff --git a/Gemfile b/Gemfile
index 6c00599117ac9f756366c118094e978988aa4abc..ac1c08f8821ff5411e00b2f3ceaad68246fa35b3 100644
--- a/Gemfile
+++ b/Gemfile
@@ -10,6 +10,6 @@ gem 'jekyll-feed', '~> 0.15.1'
 gem "jekyll-sitemap", "~> 1.4"
 
 group :test do
-    gem 'html-proofer', '~> 3.18.5'
+    gem 'html-proofer', '~> 3.18.6'
     gem 'yaml-lint', '~>0.0.7'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index a3cdb9f5e341e4e95bdf88d5e317c57e02864fc6..a83259ac5818b2dd8b197f498f3e52f9320a2f6e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,7 +13,7 @@ GEM
     eventmachine (1.2.7)
     ffi (1.14.2)
     forwardable-extended (2.6.0)
-    html-proofer (3.18.5)
+    html-proofer (3.18.6)
       addressable (~> 2.3)
       mercenary (~> 0.3)
       nokogumbo (~> 2.0)
@@ -59,15 +59,17 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.4.0)
-    mini_portile2 (2.4.0)
-    nokogiri (1.10.10)
-      mini_portile2 (~> 2.4.0)
+    mini_portile2 (2.5.0)
+    nokogiri (1.11.1)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     nokogumbo (2.0.4)
       nokogiri (~> 1.8, >= 1.8.4)
     parallel (1.20.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     public_suffix (4.0.6)
+    racc (1.5.2)
     rainbow (3.0.0)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
@@ -89,7 +91,7 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  html-proofer (~> 3.18.5)
+  html-proofer (~> 3.18.6)
   jekyll (~> 4.2.0)
   jekyll-feed (~> 0.15.1)
   jekyll-paginate (~> 1.1.0)
diff --git a/mission/publications.md b/mission/publications.md
index 2ffbda3ea1fb1d5a5482f5775bfda1e2c33d0d29..d2746ac58b0c1c5dece85b4fdf3877ca869f7988 100644
--- a/mission/publications.md
+++ b/mission/publications.md
@@ -89,7 +89,7 @@ Most of the documentation is planned to be made publicly available by Q4, 2020.
 
 #### Reports
 * [Annual report for the year 2019](https://nubes.helmholtz-berlin.de/f/78483551)
-* [Feedback Report auf the Scientific Advisory Board, May 2020](https://nubes.helmholtz-berlin.de/f/84005457)
+* [Feedback Report of the Scientific Advisory Board, May 2020](https://nubes.helmholtz-berlin.de/f/84005457)
 
 # Internal Organization
 * [HIFIS Stakeholder List](https://nubes.helmholtz-berlin.de/f/41769740)