diff --git a/README.md b/README.md
index 55f0f34..e75c57e 100644
--- a/README.md
+++ b/README.md
@@ -11,11 +11,12 @@ The following packages are required:
 
 * Python 3
 * obspy
+* pyyaml
 
 (the following are dependencies of the above):
 
 * numpy
-* matplotlib 
+* matplotlib
 
 to use the GUI:
 
@@ -26,16 +27,19 @@ to use the GUI:
 Configurations of *datapath*, *networks*, *stations* etc. can be done in the **parameters.yaml** input file.
 
 The main program is executed by entering
+
 ```shell script
 python survBot.py
 ```
 
 The GUI can be loaded via
+
 ```shell script
 python survBotGui.py
 ```
 
 ## Staff
+
 Original author: M.Paffrath (marcel.paffrath@rub.de)
 
-November 2022
\ No newline at end of file
+November 2022