diff --git a/Cargo.lock b/Cargo.lock
index c5729c07..e51a106b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -153,14 +153,13 @@ dependencies = [
 
 [[package]]
 name = "ammonia"
-version = "3.1.4"
+version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea9f21d23d82bae9d33c21080572af1fa749788e68234b5d8fa5e39d3e0783ed"
+checksum = "d5ed2509ee88cc023cccee37a6fab35826830fe8b748b3869790e7720c2c4a74"
 dependencies = [
  "html5ever",
- "lazy_static",
  "maplit",
- "markup5ever_rcdom",
+ "once_cell",
  "tendril",
  "url 2.2.2",
 ]
@@ -1737,9 +1736,9 @@ dependencies = [
 
 [[package]]
 name = "html5ever"
-version = "0.25.1"
+version = "0.26.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aafcf38a1a36118242d29b92e1b08ef84e67e4a5ed06e0a80be20e6a32bfed6b"
+checksum = "bea68cab48b8459f17cf1c944c67ddc572d272d9f2b274140f223ecb1da4a3b7"
 dependencies = [
  "log 0.4.14",
  "mac",
@@ -2344,9 +2343,9 @@ checksum = "3e2e65a1a2e43cfcb47a895c4c8b10d1f4a61097f9f254f183aee60cad9c651d"
 
 [[package]]
 name = "markup5ever"
-version = "0.10.1"
+version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a24f40fb03852d1cdd84330cddcaf98e9ec08a7b7768e952fad3b4cf048ec8fd"
+checksum = "7a2629bb1404f3d34c2e921f21fd34ba00b206124c81f65c50b43b6aaefeb016"
 dependencies = [
  "log 0.4.14",
  "phf",
@@ -2356,18 +2355,6 @@ dependencies = [
  "tendril",
 ]
 
-[[package]]
-name = "markup5ever_rcdom"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f015da43bcd8d4f144559a3423f4591d69b8ce0652c905374da7205df336ae2b"
-dependencies = [
- "html5ever",
- "markup5ever",
- "tendril",
- "xml5ever",
-]
-
 [[package]]
 name = "matches"
 version = "0.1.9"
@@ -2978,21 +2965,21 @@ checksum = "d4fd5641d01c8f18a23da7b6fe29298ff4b55afcccdf78973b24cf3175fee32e"
 
 [[package]]
 name = "phf"
-version = "0.8.0"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3dfb61232e34fcb633f43d12c58f83c1df82962dcdfa565a4e866ffc17dafe12"
+checksum = "fabbf1ead8a5bcbc20f5f8b939ee3f5b0f6f281b6ad3468b84656b658b455259"
 dependencies = [
- "phf_shared",
+ "phf_shared 0.10.0",
 ]
 
 [[package]]
 name = "phf_codegen"
-version = "0.8.0"
+version = "0.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cbffee61585b0411840d3ece935cce9cb6321f01c45477d30066498cd5e1a815"
+checksum = "4fb1c3a8bc4dd4e5cfce29b44ffc14bedd2ee294559a294e2a4d4c9e9a6a13cd"
 dependencies = [
- "phf_generator",
- "phf_shared",
+ "phf_generator 0.10.0",
+ "phf_shared 0.10.0",
 ]
 
 [[package]]
@@ -3001,10 +2988,20 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "17367f0cc86f2d25802b2c26ee58a7b23faeccf78a396094c13dced0d0182526"
 dependencies = [
- "phf_shared",
+ "phf_shared 0.8.0",
  "rand 0.7.3",
 ]
 
+[[package]]
+name = "phf_generator"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d5285893bb5eb82e6aaf5d59ee909a06a16737a8970984dd7746ba9283498d6"
+dependencies = [
+ "phf_shared 0.10.0",
+ "rand 0.8.4",
+]
+
 [[package]]
 name = "phf_shared"
 version = "0.8.0"
@@ -3014,6 +3011,15 @@ dependencies = [
  "siphasher",
 ]
 
+[[package]]
+name = "phf_shared"
+version = "0.10.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b6796ad771acdc0123d2a88dc428b5e38ef24456743ddb1744ed628f9815c096"
+dependencies = [
+ "siphasher",
+]
+
 [[package]]
 name = "pin-project"
 version = "1.0.10"
@@ -4328,7 +4334,7 @@ dependencies = [
  "lazy_static",
  "new_debug_unreachable",
  "parking_lot 0.11.2",
- "phf_shared",
+ "phf_shared 0.8.0",
  "precomputed-hash",
  "serde 1.0.136",
 ]
@@ -4339,8 +4345,8 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f24c8e5e19d22a726626f1a5e16fe15b132dcf21d10177fa5a45ce7962996b97"
 dependencies = [
- "phf_generator",
- "phf_shared",
+ "phf_generator 0.8.0",
+ "phf_shared 0.8.0",
  "proc-macro2 1.0.36",
  "quote 1.0.15",
 ]
@@ -5582,18 +5588,6 @@ version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2d7d3948613f75c98fd9328cfdcc45acc4d360655289d0a7d4ec931392200a3"
 
-[[package]]
-name = "xml5ever"
-version = "0.16.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9234163818fd8e2418fcde330655e757900d4236acd8cc70fef345ef91f6d865"
-dependencies = [
- "log 0.4.14",
- "mac",
- "markup5ever",
- "time 0.1.43",
-]
-
 [[package]]
 name = "yada"
 version = "0.4.1"
diff --git a/plume-models/Cargo.toml b/plume-models/Cargo.toml
index 9624f94e..369799d1 100644
--- a/plume-models/Cargo.toml
+++ b/plume-models/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 activitypub = "0.1.1"
-ammonia = "3.1.4"
+ammonia = "3.2.0"
 bcrypt = "0.12.1"
 guid-create = "0.2"
 itertools = "0.10.3"