diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..ca679ab
--- /dev/null
+++ b/requirements.txt
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+certifi==2017.11.5
+chardet==3.0.4
+google-api-python-client==1.6.4
+httplib2==0.10.3
+icalendar==4.0.0
+idna==2.6
+oauth2client==4.1.2
+pyasn1==0.4.2
+pyasn1-modules==0.2.1
+python-dateutil==2.6.1
+pytz==2017.3
+requests==2.18.4
+rsa==3.4.2
+six==1.11.0
+uritemplate==3.0.0
+urllib3==1.22