diff --git a/kong-aws-request-signing-1.0.3-3.rockspec b/kong-aws-request-signing-1.0.4-3.rockspec
similarity index 97%
rename from kong-aws-request-signing-1.0.3-3.rockspec
rename to kong-aws-request-signing-1.0.4-3.rockspec
index f6ef7dd..82db4c2 100644
--- a/kong-aws-request-signing-1.0.3-3.rockspec
+++ b/kong-aws-request-signing-1.0.4-3.rockspec
@@ -1,6 +1,6 @@
 local plugin_name = "aws-request-signing"
 local package_name = "kong-" .. plugin_name
-local package_version = "1.0.3"
+local package_version = "1.0.4"
 local rockspec_revision = "3"
 
 local github_account_name = "LEGO"
diff --git a/kong/plugins/aws-request-signing/handler.lua b/kong/plugins/aws-request-signing/handler.lua
index 5f77ed1..f708dd0 100644
--- a/kong/plugins/aws-request-signing/handler.lua
+++ b/kong/plugins/aws-request-signing/handler.lua
@@ -175,6 +175,6 @@ function AWSLambdaSTS:access(conf)
 end
 
 AWSLambdaSTS.PRIORITY = 110
-AWSLambdaSTS.VERSION = "1.0.3"
+AWSLambdaSTS.VERSION = "1.0.4"
 
 return AWSLambdaSTS
diff --git a/kong/plugins/aws-request-signing/schema.lua b/kong/plugins/aws-request-signing/schema.lua
index e081b82..4e3426a 100644
--- a/kong/plugins/aws-request-signing/schema.lua
+++ b/kong/plugins/aws-request-signing/schema.lua
@@ -33,7 +33,8 @@ return {
           required = true,
         } },
         { override_target_host = {
-          type = "string"
+          type = "string",
+          not_match = "^https?://"
         } },
         { override_target_port = {
           type = "number"