diff --git a/README.md b/README.md
index 777bd3c..725f449 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,8 @@ The program assumes POSIX functionalities as provided by unistd.h and a Unix fil
 To compile the program you need a C++ compiler which supports the C++11 standard.
 
 The program has been tested on the following systems:
-* Debian Linux 5.10.70-1, GCC 10.2.1 20210110
+* Debian Linux 11.1, GCC 10.2.1 20210110
+* Manjaro Linux 21.1, GCC 11.1.0
 * macOS 11.5.2, Apple clang 12.0.5
 
 ## Installation
@@ -251,5 +252,5 @@ Project: Code Project
 Total: 24.35
 ~~~
 
-### `version`
+#### `version`
 Prints the version number of `tt`