diff --git a/INSTALL.md b/INSTALL.md
index aa5eb882b..ffb82bdcc 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -418,7 +418,7 @@ so, you will need to edit `homeserver.yaml`, as follows:
   for having Synapse automatically provision and renew federation
   certificates through ACME can be found at [ACME.md](docs/ACME.md).
   Note that, as pointed out in that document, this feature will not
-  work with installs set up after November 2020. 
+  work with installs set up after November 2019. 
   
   If you are using your own certificate, be sure to use a `.pem` file that
   includes the full certificate chain including any intermediate certificates
diff --git a/changelog.d/7015.misc b/changelog.d/7015.misc
new file mode 100644
index 000000000..9709dc606
--- /dev/null
+++ b/changelog.d/7015.misc
@@ -0,0 +1 @@
+Change date in INSTALL.md#tls-certificates for last date of getting TLS certificates to November 2019.
\ No newline at end of file