diff --git a/rebar.config b/rebar.config
index 8932ed5..e0093a8 100644
--- a/rebar.config
+++ b/rebar.config
@@ -20,7 +20,7 @@
 
 {cover_opts, [verbose]}.
 
-{deps, [{jiffy, "1.0.8"}]}.
+{deps, [{jiffy, "1.1.1"}]}.
 
 {dialyzer,
  [{warnings, [no_return, error_handling]},
diff --git a/rebar.lock b/rebar.lock
index 1d86398..af98da6 100644
--- a/rebar.lock
+++ b/rebar.lock
@@ -1,8 +1,8 @@
 {"1.2.0",
-[{<<"jiffy">>,{pkg,<<"jiffy">>,<<"1.0.8">>},0}]}.
+[{<<"jiffy">>,{pkg,<<"jiffy">>,<<"1.1.1">>},0}]}.
 [
 {pkg_hash,[
- {<<"jiffy">>, <<"60E36F00BE35E5AC6E6CF2D4CAF3BDF3103D4460AFF385F543A8D7DF2D6D9613">>}]},
+ {<<"jiffy">>, <<"ACA10F47AA91697BF24AB9582C74E00E8E95474C7EF9F76D4F1A338D0F5DE21B">>}]},
 {pkg_hash_ext,[
- {<<"jiffy">>, <<"F9AE986BA5A0854EB48CF6A76192D9367086DA86C20197DA430630BE7C087A4E">>}]}
+ {<<"jiffy">>, <<"62E1F0581C3C19C33A725C781DFA88410D8BFF1BBAFC3885A2552286B4785C4C">>}]}
 ].