diff --git a/rebar.config b/rebar.config
index ee192d9f..f6cfb8ad 100644
--- a/rebar.config
+++ b/rebar.config
@@ -3,7 +3,7 @@
 
 {deps, [{erlware_commons,     "1.3.1"},
         {ssl_verify_fun,      "1.1.5"},
-        {certifi,             "2.5.1"},
+        {certifi,             "2.5.2"},
         {parse_trans,         "3.3.0"}, % force otp-21 compat
         {providers,           "1.8.1"},
         {getopt,              "1.0.1"},
diff --git a/rebar.lock b/rebar.lock
index 263bc78f..1fa7dda7 100644
--- a/rebar.lock
+++ b/rebar.lock
@@ -1,6 +1,6 @@
 {"1.2.0",
 [{<<"bbmustache">>,{pkg,<<"bbmustache">>,<<"1.8.0">>},0},
- {<<"certifi">>,{pkg,<<"certifi">>,<<"2.5.1">>},0},
+ {<<"certifi">>,{pkg,<<"certifi">>,<<"2.5.2">>},0},
  {<<"cf">>,{pkg,<<"cf">>,<<"0.2.2">>},0},
  {<<"cth_readable">>,{pkg,<<"cth_readable">>,<<"1.4.8">>},0},
  {<<"erlware_commons">>,{pkg,<<"erlware_commons">>,<<"1.3.1">>},0},
@@ -16,7 +16,7 @@
 [
 {pkg_hash,[
  {<<"bbmustache">>, <<"A268D256B3D5C7CF9FD14ECED58977BC71AADB7CE412E883C3A2CD0A10F3CF27">>},
- {<<"certifi">>, <<"867CE347F7C7D78563450A18A6A28A8090331E77FA02380B4A21962A65D36EE5">>},
+ {<<"certifi">>, <<"B7CFEAE9D2ED395695DD8201C57A2D019C0C43ECAF8B8BCB9320B40D6662F340">>},
  {<<"cf">>, <<"7F2913FFF90ABCABD0F489896CFEB0B0674F6C8DF6C10B17A83175448029896C">>},
  {<<"cth_readable">>, <<"348FBC3110959946539661682127979EC8D25ADA026A95F7ABD336C39BF3E3F9">>},
  {<<"erlware_commons">>, <<"0CE192AD69BC6FD0880246D852D0ECE17631E234878011D1586E053641ED4C04">>},
@@ -27,7 +27,7 @@
  {<<"ssl_verify_fun">>, <<"6EAF7AD16CB568BB01753DBBD7A95FF8B91C7979482B95F38443FE2C8852A79B">>}]},
 {pkg_hash_ext,[
  {<<"bbmustache">>, <<"190EA2206128BDFABF5D9200B8DF97F6511D9C62953655828E28C2BC79161252">>},
- {<<"certifi">>, <<"805ABD97539CAF89EC6D4732C91E62BA9DA0CDA51AC462380BBD28EE697A8C42">>},
+ {<<"certifi">>, <<"3B3B5F36493004AC3455966991EAF6E768CE9884693D9968055AEEEB1E575040">>},
  {<<"cf">>, <<"48283B3019BC7FAD56E7B23028A5DA4D3E6CD598A553AB2A99A2153BF5F19B21">>},
  {<<"cth_readable">>, <<"46C3BB14DF581DC7A9DC0CB9E8C755BFF596665FB9A23148DD76E3A200804E90">>},
  {<<"erlware_commons">>, <<"7AADA93F368D0A0430122E39931B7FB4AC9E94DBF043CDC980AD4330FD9CD166">>},