diff --git a/integration_zulip/integration_zulip.crt b/integration_zulip/integration_zulip.crt
new file mode 100644
index 0000000..06a7a96
--- /dev/null
+++ b/integration_zulip/integration_zulip.crt
@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----