diff --git a/rebar.config b/rebar.config
index 87edb36..9342440 100644
--- a/rebar.config
+++ b/rebar.config
@@ -2,7 +2,7 @@
 
 {erl_opts, [debug_info]}.
 
-{deps, [ {aebytecode, {git, "https://github.com/aeternity/aebytecode.git", {ref,"38f4f0e"}}}
+{deps, [ {aebytecode, {git, "https://github.com/aeternity/aebytecode.git", {ref,"b040dcc"}}}
        , {getopt, "1.0.1"}
        , {eblake2, "1.0.0"}
        , {jsx, {git, "https://github.com/talentdeficit/jsx.git",
diff --git a/rebar.lock b/rebar.lock
index f4e93cb..0e0b07b 100644
--- a/rebar.lock
+++ b/rebar.lock
@@ -1,7 +1,7 @@
 {"1.1.0",
 [{<<"aebytecode">>,
   {git,"https://github.com/aeternity/aebytecode.git",
-       {ref,"38f4f0ecd75db592f596b9687c37945d4fc807d7"}},
+       {ref,"b040dccdefb0713198986264bc2d19d3fb84398d"}},
   0},
  {<<"aeserialization">>,
   {git,"https://github.com/aeternity/aeserialization.git",
diff --git a/src/aeso_ast_infer_types.erl b/src/aeso_ast_infer_types.erl
index db5b39a..e585ac5 100644
--- a/src/aeso_ast_infer_types.erl
+++ b/src/aeso_ast_infer_types.erl
@@ -469,7 +469,7 @@ global_env() ->
                       {"claim",    SignFun([Address, String, Int, Int], Unit)},
                       {"transfer", SignFun([Address, Address, String], Unit)},
                       {"revoke",   SignFun([Address, String], Unit)},
-                      {"update",   SignFun([Address, String, Option(TTL), Option(TTL), Option(Map(String, Pointee))], Unit)}])
+                      {"update",   SignFun([Address, String, Option(TTL), Option(Int), Option(Map(String, Pointee))], Unit)}])
         , types = MkDefs([{"pointee", 0}]) },
 
     MapScope = #scope
diff --git a/test/contracts/aens.aes b/test/contracts/aens.aes
index cb34e82..c342170 100644
--- a/test/contracts/aens.aes
+++ b/test/contracts/aens.aes
@@ -37,14 +37,14 @@ contract AENSTest =
   stateful entrypoint update(owner      : address,
                              name       : string,
                              ttl        : option(Chain.ttl),
-                             client_ttl : option(Chain.ttl),
+                             client_ttl : option(int),
                              pointers   : option(map(string, AENS.pointee))) : unit =
     AENS.update(owner, name, ttl, client_ttl, pointers)
 
   stateful entrypoint signedUpdate(owner      : address,
                                    name       : string,
                                    ttl        : option(Chain.ttl),
-                                   client_ttl : option(Chain.ttl),
+                                   client_ttl : option(int),
                                    pointers   : option(map(string, AENS.pointee)),
                                    sign       : signature) : unit =
     AENS.update(owner, name, ttl, client_ttl, pointers, signature = sign)