diff --git a/Cargo.lock b/Cargo.lock
index ba39ca51d..cc7063c94 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -958,7 +958,7 @@ dependencies = [
  "num-iter 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-rational 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-traits 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "png 0.16.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "png 0.16.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "tiff 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1576,7 +1576,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "png"
-version = "0.16.3"
+version = "0.16.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1831,7 +1831,7 @@ dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "minimp3 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_enum 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "png 0.16.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "png 0.16.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "pretty_assertions 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "puremp3 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "quick-xml 0.18.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1881,7 +1881,7 @@ dependencies = [
  "js-sys 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "png 0.16.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "png 0.16.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "ruffle_core 0.1.0",
  "ruffle_web_common 0.1.0",
  "svg 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1907,7 +1907,7 @@ dependencies = [
  "js-sys 0.3.40 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "percent-encoding 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "png 0.16.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "png 0.16.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "ruffle_core 0.1.0",
  "ruffle_render_common_tess 0.1.0",
  "ruffle_web_common 0.1.0",
@@ -2895,7 +2895,7 @@ dependencies = [
 "checksum pin-project-internal 0.4.13 (registry+https://github.com/rust-lang/crates.io-index)" = "ccbf6449dcfb18562c015526b085b8df1aa3cdab180af8ec2ebd300a3bd28f63"
 "checksum pin-utils 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 "checksum pkg-config 0.3.17 (registry+https://github.com/rust-lang/crates.io-index)" = "05da548ad6865900e60eaba7f589cc0783590a92e940c26953ff81ddbab2d677"
-"checksum png 0.16.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2c68a431ed29933a4eb5709aca9800989758c97759345860fa5db3cfced0b65d"
+"checksum png 0.16.4 (registry+https://github.com/rust-lang/crates.io-index)" = "12faa637ed9ae3d3c881332e54b5ae2dba81cda9fc4bbce0faa1ba53abcead50"
 "checksum ppv-lite86 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "74490b50b9fbe561ac330df47c08f3f33073d2d00c150f719147d7c54522fa1b"
 "checksum pretty_assertions 0.6.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3f81e1644e1b54f5a68959a29aa86cde704219254669da328ecfdf6a1f09d427"
 "checksum proc-macro-crate 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "e10d4b51f154c8a7fb96fd6dad097cb74b863943ec010ac94b9fd1be8861fe1e"
diff --git a/core/Cargo.toml b/core/Cargo.toml
index af9b4baf9..5537eaa34 100644
--- a/core/Cargo.toml
+++ b/core/Cargo.toml
@@ -16,7 +16,7 @@ indexmap = "1.3.2"
 libflate = "1.0.1"
 log = "0.4"
 minimp3 = { version = "0.3.5", optional = true }
-png = { version = "0.16.3" }
+png = { version = "0.16.4" }
 puremp3 = { version = "0.1", optional = true }
 ruffle_macros = { path = "macros" }
 swf = { path = "../swf" }
diff --git a/render/canvas/Cargo.toml b/render/canvas/Cargo.toml
index 15a74790c..8563d446f 100644
--- a/render/canvas/Cargo.toml
+++ b/render/canvas/Cargo.toml
@@ -16,7 +16,7 @@ log = "0.4"
 ruffle_web_common = { path = "../../web/common" }
 svg = "0.8.0"
 percent-encoding = "2.1.0"
-png = "0.16.3"
+png = "0.16.4"
 wasm-bindgen = "0.2.57"
 
 [dependencies.jpeg-decoder]
diff --git a/render/webgl/Cargo.toml b/render/webgl/Cargo.toml
index 594a383f4..0b60ceacd 100644
--- a/render/webgl/Cargo.toml
+++ b/render/webgl/Cargo.toml
@@ -10,7 +10,7 @@ fnv = "1.0.7"
 js-sys = "0.3.25"
 log = "0.4" 
 percent-encoding = "2.1.0"
-png = "0.16.3"
+png = "0.16.4"
 ruffle_render_common_tess = { path = "../common_tess" }
 ruffle_web_common = { path = "../../web/common" }
 wasm-bindgen = "0.2.57"