diff --git a/rebar.config b/rebar.config
index a32f64c..694d2df 100644
--- a/rebar.config
+++ b/rebar.config
@@ -10,7 +10,7 @@
     {envloader, {git, "https://github.com/nuex/envloader.git", {branch, "master"}}},
     eql,
     getopt,
-    epgsql
+    {epgsql, "4.6.0"}
 ]}.
 
 {escript_incl_apps, [psql_migration]}.
diff --git a/rebar.lock b/rebar.lock
index dc3896d..15865a1 100644
--- a/rebar.lock
+++ b/rebar.lock
@@ -1,14 +1,18 @@
-{"1.1.0",
+{"1.2.0",
 [{<<"envloader">>,
   {git,"https://github.com/nuex/envloader.git",
        {ref,"27a97e04f35c554995467b9236d8ae0188d468c7"}},
   0},
- {<<"epgsql">>,{pkg,<<"epgsql">>,<<"4.5.0">>},0},
+ {<<"epgsql">>,{pkg,<<"epgsql">>,<<"4.6.0">>},0},
  {<<"eql">>,{pkg,<<"eql">>,<<"0.2.0">>},0},
  {<<"getopt">>,{pkg,<<"getopt">>,<<"1.0.2">>},0}]}.
 [
 {pkg_hash,[
- {<<"epgsql">>, <<"CA863EE3A771E7696AE58EC924A29DF8435CDAFFA64DBA70C02DD2571AD2122D">>},
+ {<<"epgsql">>, <<"A403534D03811C867E79405BB18D6061A5FCEF92ACF0236A9150AC93748CE143">>},
  {<<"eql">>, <<"598ABC19A1CF6AFB8EF89FFEA869F43BAEBB1CEC3260DD5065112FEE7D8CE3E2">>},
- {<<"getopt">>, <<"33D9B44289FE7AD08627DDFE1D798E30B2DA0033B51DA1B3A2D64E72CD581D02">>}]}
+ {<<"getopt">>, <<"33D9B44289FE7AD08627DDFE1D798E30B2DA0033B51DA1B3A2D64E72CD581D02">>}]},
+{pkg_hash_ext,[
+ {<<"epgsql">>, <<"6BE4910A02551F21EAB6F6F27D97B0D4B1DFFC617F1A64C8C95FDD45652FA9E1">>},
+ {<<"eql">>, <<"513BE6B36EE86E8292B2B7475C257ABB66CED5AAD40CBF7AD21E233D0A3BF51D">>},
+ {<<"getopt">>, <<"A0029AEA4322FB82A61F6876A6D9C66DC9878B6CB61FAA13DF3187384FD4EA26">>}]}
 ].
diff --git a/rebar3 b/rebar3
index 00494f9..2497f39 100755
Binary files a/rebar3 and b/rebar3 differ