diff --git a/config/dev.exs b/config/dev.exs
index cfe3cce47..6b7ffb0e9 100644
--- a/config/dev.exs
+++ b/config/dev.exs
@@ -54,6 +54,10 @@ config :pleroma, Pleroma.Repo,
 
 config :pleroma, Pleroma.Web.ApiSpec.CastAndValidate, strict: true
 
+# Reduce recompilation time
+# https://dashbit.co/blog/speeding-up-re-compilation-of-elixir-projects
+config :phoenix, :plug_init_mode, :runtime
+
 if File.exists?("./config/dev.secret.exs") do
   import_config "dev.secret.exs"
 else
diff --git a/config/test.exs b/config/test.exs
index c531b1290..d5c25f65e 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -133,6 +133,10 @@ config :pleroma, :side_effects,
   ap_streamer: Pleroma.Web.ActivityPub.ActivityPubMock,
   logger: Pleroma.LoggerMock
 
+# Reduce recompilation time
+# https://dashbit.co/blog/speeding-up-re-compilation-of-elixir-projects
+config :phoenix, :plug_init_mode, :runtime
+
 if File.exists?("./config/test.secret.exs") do
   import_config "test.secret.exs"
 else