diff --git a/Cargo.lock b/Cargo.lock
index c1325a6a..9060f12d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2371,7 +2371,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fc2f4eb4bc735547cfed7c0a4922cbd04a4655978c09b54f1f7b228750664c34"
 dependencies = [
  "cfg-if",
- "windows-targets 0.48.5",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -2507,6 +2507,16 @@ version = "0.3.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
 
+[[package]]
+name = "mime_guess"
+version = "2.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f7c44f8e672c00fe5308fa235f821cb4198414e1c77935c1ab6948d3fd78550e"
+dependencies = [
+ "mime",
+ "unicase",
+]
+
 [[package]]
 name = "mime_guess2"
 version = "2.0.5"
@@ -2742,6 +2752,7 @@ dependencies = [
  "enostr",
  "hex",
  "image",
+ "mime_guess",
  "nostrdb",
  "poll-promise",
  "puffin 0.19.1 (git+https://github.com/jb55/puffin?rev=70ff86d5503815219b01a009afd3669b7903a057)",
diff --git a/Cargo.toml b/Cargo.toml
index b1490234..49dfecd1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -57,6 +57,7 @@ uuid = { version = "1.10.0", features = ["v4"] }
 security-framework = "2.11.0"
 sha2 = "0.10.8"
 bincode = "1.3.3"
+mime_guess = "2.0.5"
 
 [patch.crates-io]
 egui = { git = "https://github.com/damus-io/egui", branch = "update_layouter_0.29.1" }
diff --git a/crates/notedeck/Cargo.toml b/crates/notedeck/Cargo.toml
index 3408fb32..3ed439b6 100644
--- a/crates/notedeck/Cargo.toml
+++ b/crates/notedeck/Cargo.toml
@@ -27,6 +27,7 @@ puffin_egui = { workspace = true, optional = true }
 sha2 = { workspace = true }
 bincode = { workspace = true }
 ehttp = {workspace = true }
+mime_guess = { workspace = true }
 
 [dev-dependencies]
 tempfile = { workspace = true }