diff --git a/arangodb/README.md b/arangodb/README.md
index 310260cce..b66d5cc81 100644
--- a/arangodb/README.md
+++ b/arangodb/README.md
@@ -17,7 +17,7 @@ WARNING:
 # Supported tags and respective `Dockerfile` links
 
 -	[`2.8`, `2.8.11` (*jessie/2.8.11/Dockerfile*)](https://github.com/arangodb/arangodb-docker/blob/05366cb4c6a6aab8e1ff9ca74c81b09d9a57b5b5/jessie/2.8.11/Dockerfile)
--	[`3.1`, `3.1.20`, `latest` (*jessie/3.1.20/Dockerfile*)](https://github.com/arangodb/arangodb-docker/blob/d930b191a1867cb4ab853fe37c9cf7fdfc64dbc1/jessie/3.1.20/Dockerfile)
+-	[`3.1`, `3.1.21`, `latest` (*jessie/3.1.21/Dockerfile*)](https://github.com/arangodb/arangodb-docker/blob/3f34ce3522ece639f0d01968934f0a191a7ba2a4/jessie/3.1.21/Dockerfile)
 
 # Quick reference
 
diff --git a/hello-world/README.md b/hello-world/README.md
index 77413fba9..ced4aff79 100644
--- a/hello-world/README.md
+++ b/hello-world/README.md
@@ -72,7 +72,7 @@ For more examples and ideas, visit:
 
 $ docker images hello-world
 REPOSITORY   TAG     IMAGE ID      SIZE
-hello-world  latest  48b5124b2768  1.84kB
+hello-world  latest  48b5124b2768  1.84 kB
 ```
 
 ![logo](https://raw.githubusercontent.com/docker-library/docs/01c12653951b2fe592c1f93a13b4e289ada0e3a1/hello-world/logo.png)
diff --git a/hello-world/content.md b/hello-world/content.md
index aeb2fbe2b..71b42522e 100644
--- a/hello-world/content.md
+++ b/hello-world/content.md
@@ -26,7 +26,7 @@ For more examples and ideas, visit:
 
 $ docker images hello-world
 REPOSITORY   TAG     IMAGE ID      SIZE
-hello-world  latest  48b5124b2768  1.84kB
+hello-world  latest  48b5124b2768  1.84 kB
 ```
 
 %%LOGO%%