diff --git a/Cargo.lock b/Cargo.lock
index 869f3ad..3f9e7ab 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -227,9 +227,9 @@ dependencies = [
 
 [[package]]
 name = "deno_media_type"
-version = "0.3.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac0109d26ff08a089642a79b45c65f91a849404c1ef3ec78c837a412956d8808"
+checksum = "debab24ecd9f4fd64aa42fb18a02dff20a97d5830b2b85b98ce70b509f790763"
 dependencies = [
  "data-url",
  "serde",
diff --git a/rs_lib/Cargo.toml b/rs_lib/Cargo.toml
index 5a1e9da..5007a18 100644
--- a/rs_lib/Cargo.toml
+++ b/rs_lib/Cargo.toml
@@ -25,7 +25,7 @@ cache_control = { version = "0.2.0", optional = true }
 chrono = { version = "0.4", default-features = false, features = ["std"], optional = true }
 data-url = { version = "0.3.0", optional = true }
 deno_error = { version = "0.7.0", features =["url"] }
-deno_media_type = "0.3.0"
+deno_media_type = "0.4.0"
 deno_path_util = "0.6.0"
 sys_traits.workspace = true
 http = { version = "1", optional = true }
diff --git a/rs_lib/src/local.rs b/rs_lib/src/local.rs
index d3c5dd1..cf403b1 100644
--- a/rs_lib/src/local.rs
+++ b/rs_lib/src/local.rs
@@ -616,6 +616,7 @@ fn url_to_local_sub_path<'a>(
       MediaType::Json => ".json",
       MediaType::Jsonc => ".jsonc",
       MediaType::Json5 => ".json5",
+      MediaType::Markdown => ".md",
       MediaType::Wasm => ".wasm",
       MediaType::SourceMap => ".js",
       MediaType::Html => ".html",