diff --git a/.travis.yml b/.travis.yml
index 098a607..f35e3cd 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,7 @@
 language: erlang
 otp_release:
+  - 18.3
+  - 18.1
+  - 17.4
   - 17.1
   - 17.0
diff --git a/rebar.config b/rebar.config
index 4864be7..b801be2 100644
--- a/rebar.config
+++ b/rebar.config
@@ -3,14 +3,14 @@
 
 {deps_dir, ["deps"]}.
 {deps, [{edown, ".*",
-         {git, "https://github.com/esl/edown.git",
-          "master"}},
+         {git, "https://github.com/uwiger/edown.git",
+          {tag, "0.8"}}},
         {proper_stdlib, ".*",
          {git, "https://github.com/spawngrid/proper_stdlib.git",
           "master"}},
         {proper, ".*",
          {git, "https://github.com/manopapad/proper.git",
-          {tag, "v1.0"}}}]}.
+          {tag, "63de455c90"}}}]}.
 
 {eunit_opts, [verbose, {report,{eunit_surefire, [{dir, "."}]}}]}.