diff --git a/Cargo.lock b/Cargo.lock
index 9f85c50b..ca9b1c11 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -153,15 +153,14 @@ dependencies = [
 
 [[package]]
 name = "ammonia"
-version = "3.1.3"
+version = "3.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b74b175af97d1aecc1add0878b1cbfcbf3bd4c22d7713eeb6d597da23e29bc0d"
+checksum = "ea9f21d23d82bae9d33c21080572af1fa749788e68234b5d8fa5e39d3e0783ed"
 dependencies = [
  "html5ever",
  "lazy_static",
  "maplit",
  "markup5ever_rcdom",
- "matches",
  "tendril",
  "url 2.2.2",
 ]
diff --git a/plume-models/Cargo.toml b/plume-models/Cargo.toml
index c68b6706..956a84d1 100644
--- a/plume-models/Cargo.toml
+++ b/plume-models/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 activitypub = "0.1.1"
-ammonia = "3.1.2"
+ammonia = "3.1.4"
 bcrypt = "0.10.1"
 guid-create = "0.2"
 itertools = "0.10.3"