diff --git a/figures/Schmidt2018_dyn/README.md b/figures/Schmidt2018_dyn/README.md
index 64fdd94d3c9e8efd07ae52b73641fe50b7187763..73f1c383cf668603bbe699fc1d3572d7a7c83ff9 100644
--- a/figures/Schmidt2018_dyn/README.md
+++ b/figures/Schmidt2018_dyn/README.md
@@ -28,6 +28,8 @@ Reproducing the figures requires some additional Python packages listed in `addi
 
 `pip install -r additional_requirements.txt`
 
+The calculation of BOLD signals from the simulated firing rates for Fig. 8 requires an installation of R and the R library `neuRosim` (<https://cran.r-project.org/web/packages/neuRosim/index.html>).
+
 ### Snakemake workflow
 
 The entire workflow from raw spike files till the final figures is defined in `Snakefile` and `Snakefile_preprocessing`. If snakemake is installed, the figures can be produced by executing `snakemake`.
diff --git a/figures/Schmidt2018_dyn/additional_requirements.txt b/figures/Schmidt2018_dyn/additional_requirements.txt
index 8489ecf53399a424b7149a68adc83cd17daf2d1b..fe439dad07aa7c8c11b88b31402bf1aa7e6437c3 100644
--- a/figures/Schmidt2018_dyn/additional_requirements.txt
+++ b/figures/Schmidt2018_dyn/additional_requirements.txt
@@ -1,5 +1,5 @@
 statsmodels
-R
 networkx
 pyx
 python-louvain
+-e git+https://github.com/mschmidt87/correlation-toolbox.git@enh/add_setup_file#egg=correlation-toolbox