diff --git a/rebar.config b/rebar.config
index 0562dd96e..0721efc93 100644
--- a/rebar.config
+++ b/rebar.config
@@ -3,7 +3,7 @@
 
 {deps, [{erlware_commons,  "1.5.0"},
         {ssl_verify_fun,   "1.1.6"},
-        {certifi,          "2.8.0"},
+        {certifi,          "2.9.0"},
         {providers,        "1.9.0"},
         {getopt,           "1.0.1"},
         {bbmustache,       "1.12.2"},
diff --git a/rebar.lock b/rebar.lock
index ed23ddfb3..f3b0a349e 100644
--- a/rebar.lock
+++ b/rebar.lock
@@ -1,6 +1,6 @@
 {"1.2.0",
 [{<<"bbmustache">>,{pkg,<<"bbmustache">>,<<"1.12.2">>},0},
- {<<"certifi">>,{pkg,<<"certifi">>,<<"2.8.0">>},0},
+ {<<"certifi">>,{pkg,<<"certifi">>,<<"2.9.0">>},0},
  {<<"cf">>,{pkg,<<"cf">>,<<"0.3.1">>},0},
  {<<"cth_readable">>,{pkg,<<"cth_readable">>,<<"1.5.1">>},0},
  {<<"erlware_commons">>,{pkg,<<"erlware_commons">>,<<"1.5.0">>},0},
@@ -12,7 +12,7 @@
 [
 {pkg_hash,[
  {<<"bbmustache">>, <<"0CABDCE0DB9FE6D3318131174B9F2B351328A4C0AFBEB3E6E99BB0E02E9B621D">>},
- {<<"certifi">>, <<"D4FB0A6BB20B7C9C3643E22507E42F356AC090A1DCEA9AB99E27E0376D695EBA">>},
+ {<<"certifi">>, <<"6F2A475689DD47F19FB74334859D460A2DC4E3252A3324BD2111B8F0429E7E21">>},
  {<<"cf">>, <<"5CB902239476E141EA70A740340233782D363A31EEA8AD37049561542E6CD641">>},
  {<<"cth_readable">>, <<"F511EFCFDE04A48B014A9197FFF1B4C4860E4E35CDB8E2F3AE3C4178E20299B1">>},
  {<<"erlware_commons">>, <<"918C56D8FB3BE52AF0DF138ED6E0755E764AD4467CD7D025761F7D0A17D3DEC1">>},
@@ -23,7 +23,7 @@
  {<<"ssl_verify_fun">>, <<"CF344F5692C82D2CD7554F5EC8FD961548D4FD09E7D22F5B62482E5AEAEBD4B0">>}]},
 {pkg_hash_ext,[
  {<<"bbmustache">>, <<"688B33A4D5CC2D51F575ADF0B3683FC40A38314A2F150906EDCFC77F5B577B3B">>},
- {<<"certifi">>, <<"6AC7EFC1C6F8600B08D625292D4BBF584E14847CE1B6B5C44D983D273E1097EA">>},
+ {<<"certifi">>, <<"266DA46BDB06D6C6D35FDE799BCB28D36D985D424AD7C08B5BB48F5B5CDD4641">>},
  {<<"cf">>, <<"315E8D447D3A4B02BCDBFA397AD03BBB988A6E0AA6F44D3ADD0F4E3C3BF97672">>},
  {<<"cth_readable">>, <<"686541A22EFE6CA5A41A047B39516C2DD28FB3CADE5F24A2F19145B3967F9D80">>},
  {<<"erlware_commons">>, <<"3E7C6FB2BA4C29B0DD5DFE9D031B66449E2088ECEC1A81465BD9FDE05ED7D0DB">>},