diff --git a/rebar.config b/rebar.config
index 622728a..838c1dd 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,8 +1,8 @@
 {erl_opts, [warnings_as_errors]}.
 
 {deps, [
-    {ncalendar, {git, "https://github.com/nomasystems/ncalendar.git", {tag, "0.3.1"}}},
-    {njson, {git, "https://github.com/nomasystems/njson.git", {tag, "2.0.0"}}}
+    {ncalendar, {git, "https://github.com/nomasystems/ncalendar.git", {branch, "main"}}},
+    {njson, {git, "https://github.com/nomasystems/njson.git", {branch, "main"}}}
 ]}.
 
 {project_plugins, [
diff --git a/rebar.lock b/rebar.lock
index a24b294..0fdad6f 100644
--- a/rebar.lock
+++ b/rebar.lock
@@ -1,8 +1,8 @@
 [{<<"ncalendar">>,
   {git,"https://github.com/nomasystems/ncalendar.git",
-       {ref,"aa5615f6723585e45e82fa5524cb976cdfe3d7f7"}},
+       {ref,"3a36a9cfe85da197f5032ce9e4c0a4a4dea9e38e"}},
   0},
  {<<"njson">>,
   {git,"https://github.com/nomasystems/njson.git",
-       {ref,"94c586b92a7e24c403089cdbe2994b7e7c87b9cc"}},
+       {ref,"42ce1fb20f43d50b5b5fdec1f3265b79c51fb632"}},
   0}].