diff --git a/rebar.config b/rebar.config
index 706bc6ed8..ee7320ff9 100644
--- a/rebar.config
+++ b/rebar.config
@@ -26,7 +26,7 @@
         {fast_xml, ".*", {git, "https://github.com/processone/fast_xml", "7fd02f3a2f"}},
         {xmpp, ".*", {git, "https://github.com/processone/xmpp", "3e2f1c5"}},
         {fast_yaml, ".*", {git, "https://github.com/processone/fast_yaml", {tag, "1.0.19"}}},
-	{yconf, ".*", {git, "https://github.com/processone/yconf", "dfeaa7e"}},
+	{yconf, ".*", {git, "https://github.com/processone/yconf", "0fde515"}},
         {jiffy, ".*", {git, "https://github.com/davisp/jiffy", {tag, "0.14.8"}}},
         {p1_oauth2, ".*", {git, "https://github.com/processone/p1_oauth2", {tag, "0.6.5"}}},
         {pkix, ".*", {git, "https://github.com/processone/pkix", {tag, "1.0.2"}}},
diff --git a/src/econf.erl b/src/econf.erl
index a2c22a43e..b150056ca 100644
--- a/src/econf.erl
+++ b/src/econf.erl
@@ -28,7 +28,7 @@
 -export([pos_int/0, pos_int/1, non_neg_int/0, non_neg_int/1]).
 -export([int/0, int/2, number/1, octal/0]).
 -export([binary/0, binary/1, binary/2]).
--export([string/0, string/1]).
+-export([string/0, string/1, string/2]).
 -export([enum/1, bool/0, atom/0, any/0]).
 %% Complex types
 -export([url/0, url/1]).
@@ -272,6 +272,9 @@ string() ->
 string(Re) ->
     yconf:string(Re).
 
+string(Re, Opts) ->
+    yconf:string(Re, Opts).
+
 any() ->
     yconf:any().