diff --git a/setup.py b/setup.py
index 45c0285..1acddf0 100755
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 long_description = """RNA-binding proteins (RBPs) play a vital role in the post-transcriptional control of RNAs. They are known to recognize RNA molecules by their nucleotide sequence as well as their three-dimensional structure. ssHMM is an RNA motif finder that combines a hidden Markov model (HMM) with Gibbs sampling to learn the joint sequence and structure binding preferences of RBPs from high-throughput RNA-binding experiments, such as CLIP-Seq. The model can be visualized as an intuitive graph illustrating the interplay between RNA sequence and structure."""
 
 setup(name='sshmm',
-      version='1.0.7',
+      version='1.0.8',
       description='A sequence-structure hidden Markov model for the analysis of RNA-binding protein data.',
       long_description=long_description,
       url='https://github.molgen.mpg.de/heller/ssHMM',
@@ -23,6 +23,6 @@
       packages=['sshmm'],
       package_data={'sshmm': ['img/*.png'],},
       zip_safe=False,
-      install_requires=['numpy', 'graphviz', 'pygraphviz', 'weblogo', 'future', 'logging_exceptions', 'forgi'],
+      install_requires=['numpy', 'graphviz', 'pygraphviz', 'weblogo', 'future', 'logging_exceptions', 'forgi==1.1'],
       scripts=['bin/preprocess_dataset', 'bin/train_seqstructhmm', 'bin/batch_seqstructhmm', 'bin/draw_model_graph'],
       ext_modules = [Extension("cEstimate", ["sshmm/cEstimate.c"])])