diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80e6190..8f75fe1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Unreleased
+## [2.1.1] - 2020-11-08
 
 ### Fixed
 - Compilation error with GCC 10, omission of cstdint header
diff --git a/docs/MANUAL.html b/docs/MANUAL.html
index df06aa9..eadcdde 100644
--- a/docs/MANUAL.html
+++ b/docs/MANUAL.html
@@ -13,7 +13,7 @@
 <div class="pretoc">
   <p class="title">Kraken taxonomic sequence classification system</p>
 
-  <p class="version">Version 2.1.0</p>
+  <p class="version">Version 2.1.1</p>
 
   <p>Operating Manual</p>
 </div>
diff --git a/docs/top.html b/docs/top.html
index f17aa3b..04b9c3c 100644
--- a/docs/top.html
+++ b/docs/top.html
@@ -1,7 +1,7 @@
 <div class="pretoc">
   <p class="title">Kraken taxonomic sequence classification system</p>
 
-  <p class="version">Version 2.1.0</p>
+  <p class="version">Version 2.1.1</p>
 
   <p>Operating Manual</p>
 </div>
diff --git a/install_kraken2.sh b/install_kraken2.sh
index 099116b..8d76aff 100755
--- a/install_kraken2.sh
+++ b/install_kraken2.sh
@@ -6,7 +6,7 @@
 
 set -e
 
-VERSION="2.1.0"
+VERSION="2.1.1"
 
 if [ -z "$1" ] || [ -n "$2" ]
 then