diff --git a/README.md b/README.md
index d29ff92..f52a02a 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # ORCA4wB97X-3c
-This is a Fortran script for setting up a ωB97X-3c calculation with ORCA.
+This is a Fortran script for setting up a ωB97X-3c calculation with ORCA5.0.3.
 
 ### Release version (recommended)
 The use of the release binary [`o4wb3c`] is recommended. The binary has to be added to a location belonging to your `$PATH` variable.
@@ -16,7 +16,7 @@ More information about FPM can be found in the respective documentation.
 To set up an input file for ωB97X-3c, you have to execute the binary in a directory with a molecular structure file (can be either .xyz, coord, or common formats (see `mctc-lib` (https://github.com/grimme-lab/mctc-lib) for possible formats).
 
 You need the files:
-- `basis_vDZP` and `ecp` in your `$HOME` or you specify an individual location of the files (see example below).
+- `.basis_vDZP` and `.ecp` in your `$HOME` (ATTENTION: the file names of the basis set and ECP files do not yet contain the (`.`) or you specify an individual location of the files (see example below or press `--help`).
 
 Example use cases:
 
@@ -27,3 +27,4 @@ o4wb3c --struc ch3.xyz --basisfile /home/$USER/basissets/basis_vDZP_TM.txt --chr
 If no `--struc` file is explicitly given, `o4wb3c` assumes a `coord` file.
 
 See the "-help" flag for further input possibilities.
+If you should observe instabilities with the `PModel` guess in ORCA, try to use `o4wb3c` together with the `--suggestedguess` flag or provide an individual guess option with `--guess`.