diff --git a/Cargo.lock b/Cargo.lock
index 5cf91864d..15f5a5711 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -742,7 +742,7 @@ dependencies = [
 
 [[package]]
 name = "image"
-version = "0.21.2"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -752,9 +752,9 @@ dependencies = [
  "num-iter 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-rational 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
- "png 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "png 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "tiff 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tiff 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1291,13 +1291,13 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "png"
-version = "0.14.1"
+version = "0.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crc32fast 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "deflate 0.7.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "inflate 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-iter 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -2000,7 +2000,7 @@ dependencies = [
  "futures-boxed 0.1.0",
  "futures-preview 0.3.0-alpha.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "html2md 0.2.9 (registry+https://github.com/rust-lang/crates.io-index)",
- "image 0.21.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "image 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "itertools 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "jsonrpc 0.1.0",
  "jsonrpc-derive 0.1.0",
@@ -2122,7 +2122,7 @@ dependencies = [
 
 [[package]]
 name = "tiff"
-version = "0.2.2"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2768,7 +2768,7 @@ dependencies = [
 "checksum hyper 0.12.33 (registry+https://github.com/rust-lang/crates.io-index)" = "7cb44cbce9d8ee4fb36e4c0ad7b794ac44ebaad924b9c8291a63215bb44c2c8f"
 "checksum hyper-rustls 0.16.1 (registry+https://github.com/rust-lang/crates.io-index)" = "15b66d1bd4864ef036adf2363409caa3acd63ebb4725957b66e621c8a36631a3"
 "checksum idna 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)" = "38f09e0f0b1fb55fdee1f17470ad800da77af5186a1a76c026b679358b7e844e"
-"checksum image 0.21.2 (registry+https://github.com/rust-lang/crates.io-index)" = "99198e595d012efccf12abf4abc08da2d97be0b0355a2b08d101347527476ba4"
+"checksum image 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1acf4f4c11b418c989773b139c0ae88ae1a17948549b6b65f2e15421dedc813f"
 "checksum indexmap 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7e81a7c05f79578dbc15793d8b619db9ba32b4577003ef3af1a91c416798c58d"
 "checksum indoc 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a1f59f228c76fda6ecd8dab79683039a7054c748587f682a911094f473647bd6"
 "checksum indoc-impl 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "63f070ef080db3601c1a0ecc75c7bb35104cc0ce2d7c4e049952a96a61d8933b"
@@ -2827,7 +2827,7 @@ dependencies = [
 "checksum phf_generator 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)" = "09364cc93c159b8b06b1f4dd8a4398984503483891b0c26b867cf431fb132662"
 "checksum phf_shared 0.7.24 (registry+https://github.com/rust-lang/crates.io-index)" = "234f71a15de2288bcb7e3b6515828d22af7ec8598ee6d24c3b526fa0a80b67a0"
 "checksum pin-utils 0.1.0-alpha.4 (registry+https://github.com/rust-lang/crates.io-index)" = "5894c618ce612a3fa23881b152b608bafb8c56cfc22f434a3ba3120b40f7b587"
-"checksum png 0.14.1 (registry+https://github.com/rust-lang/crates.io-index)" = "63daf481fdd0defa2d1d2be15c674fbfa1b0fd71882c303a91f9a79b3252c359"
+"checksum png 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8422b27bb2c013dd97b9aef69e161ce262236f49aaf46a0489011c8ff0264602"
 "checksum ppv-lite86 0.2.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e3cbf9f658cdb5000fcf6f362b8ea2ba154b9f146a61c7a20d647034c6b6561b"
 "checksum precomputed-hash 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
 "checksum proc-macro-hack 0.5.8 (registry+https://github.com/rust-lang/crates.io-index)" = "982a35d1194084ba319d65c4a68d24ca28f5fdb5b8bc20899e4eef8641ea5178"
@@ -2904,7 +2904,7 @@ dependencies = [
 "checksum termcolor 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "adc4587ead41bf016f11af03e55a624c06568b5a19db4e90fde573d805074f83"
 "checksum textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)" = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
 "checksum thread_local 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
-"checksum tiff 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "1e4834f28a0330cb9f3f2c87d2649dca723cb33802e2bdcf18da32759fbec7ce"
+"checksum tiff 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "d7b7c2cfc4742bd8a32f2e614339dd8ce30dbcf676bb262bd63a2327bc5df57d"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = "db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 "checksum tinytemplate 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "4574b75faccaacddb9b284faecdf0b544b80b6b294f3d062d325c5726a209c20"
 "checksum tokio 0.1.22 (registry+https://github.com/rust-lang/crates.io-index)" = "5a09c0b5bb588872ab2f09afa13ee6e9dac11e10a0ec9e8e3ba39a5a5d530af6"
diff --git a/Cargo.toml b/Cargo.toml
index c559ff297..f90c2bdf9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,7 @@ copy_dir = "0.1.2"
 futures-boxed = { path = "crates/futures_boxed" }
 futures-preview = { version = "0.3.0-alpha.17", features = ["compat"] }
 html2md = "0.2.9"
-image = "0.21.2"
+image = "0.22.0"
 itertools = "0.8.0"
 jsonrpc = { path = "crates/jsonrpc" }
 jsonrpc-derive = { path = "crates/jsonrpc_derive" }