diff --git a/deps/Versions.make b/deps/Versions.make
index 3311ad8a5f4f8..7bdb160fe9b3e 100644
--- a/deps/Versions.make
+++ b/deps/Versions.make
@@ -15,4 +15,4 @@ CURL_VER = 7.56.0
 # Specify the version of the Mozilla CA Certificate Store to obtain.
 # The versions of cacert.pem are identified by the date (YYYY-MM-DD) of their changes.
 # See https://curl.haxx.se/docs/caextract.html for more details.
-MOZILLA_CACERT_VERSION := 2018-06-20
+MOZILLA_CACERT_VERSION := 2018-10-17
diff --git a/deps/checksums/cacert-2018-06-20.pem/md5 b/deps/checksums/cacert-2018-06-20.pem/md5
deleted file mode 100644
index b28eef364035e..0000000000000
--- a/deps/checksums/cacert-2018-06-20.pem/md5
+++ /dev/null
@@ -1 +0,0 @@
-247294da2f913ad84609b3bdd85c16f3
diff --git a/deps/checksums/cacert-2018-06-20.pem/sha512 b/deps/checksums/cacert-2018-06-20.pem/sha512
deleted file mode 100644
index 96befa466d201..0000000000000
--- a/deps/checksums/cacert-2018-06-20.pem/sha512
+++ /dev/null
@@ -1 +0,0 @@
-f0e369cad84d2d0157d68dec9d5cb2fab0d0350952716f3273a861db9e31fc3661efc7958cd53201cdc421475df8bfc66c0acbfe293d55835b60dbd72f8da2e6
diff --git a/deps/checksums/cacert-2018-10-17.pem/md5 b/deps/checksums/cacert-2018-10-17.pem/md5
new file mode 100644
index 0000000000000..79cd13faf56de
--- /dev/null
+++ b/deps/checksums/cacert-2018-10-17.pem/md5
@@ -0,0 +1 @@
+882db4f54c25b5157cef6c0d182e729e
diff --git a/deps/checksums/cacert-2018-10-17.pem/sha512 b/deps/checksums/cacert-2018-10-17.pem/sha512
new file mode 100644
index 0000000000000..bc37f725735af
--- /dev/null
+++ b/deps/checksums/cacert-2018-10-17.pem/sha512
@@ -0,0 +1 @@
+10b5d87eeeb52e38f49b97b4cb8dc359dbfef6ffe581f63003356ef691fc20a301d9550980eff3f30457c0564a9f6b6368783c8bd116ff35fcda3f32b26dad3f