diff --git a/examples/requirements.txt b/examples/requirements.txt
index dde77501..1ddf314e 100644
--- a/examples/requirements.txt
+++ b/examples/requirements.txt
@@ -1,3 +1,4 @@
 pandas
 hyperopt
-termcolor
\ No newline at end of file
+termcolor
+bokeh == 1.2.0
\ No newline at end of file
diff --git a/solutions/absa_solution/ui.py b/solutions/absa_solution/ui.py
index edeb0558..7f773e7e 100644
--- a/solutions/absa_solution/ui.py
+++ b/solutions/absa_solution/ui.py
@@ -42,7 +42,7 @@
 from nlp_architect.models.absa.inference.data_types import SentimentDoc, SentimentSentence
 from sentiment_solution import SENTIMENT_OUT, SentimentSolution
 
-SOLUTION_DIR = join(LIBRARY_PATH, 'solutions/absa_solution/')
+SOLUTION_DIR = join(LIBRARY_PATH, "solutions/absa_solution/")
 POLARITIES = ("POS", "NEG")