diff --git a/rebar.config b/rebar.config
index 0d7c74a..d4dc8d8 100644
--- a/rebar.config
+++ b/rebar.config
@@ -16,7 +16,7 @@
   {rebar3_hank, "~> 1.4.0"},
   {rebar3_lint, "~> 3.2.3"},
   {rebar3_sheldon, "~> 0.4.3"},
-  {rebar3_ex_doc, "~> 0.2.21"}]}.
+  {rebar3_ex_doc, "~> 0.2.22"}]}.
 
 {dialyzer, [{warnings, [no_return, unmatched_returns, error_handling, underspecs]}]}.