diff --git a/codecs/png/Cargo.lock b/codecs/png/Cargo.lock
index 62d5b7e1..ea2dfdc0 100644
--- a/codecs/png/Cargo.lock
+++ b/codecs/png/Cargo.lock
@@ -51,9 +51,9 @@ dependencies = [
 
 [[package]]
 name = "js-sys"
-version = "0.3.42"
+version = "0.3.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52732a3d3ad72c58ad2dc70624f9c17b46ecd0943b9a4f1ee37c4c18c5d983e2"
+checksum = "ca059e81d9486668f12d455a4ea6daa600bd408134cd17e3d3fb5a32d1f016f8"
 dependencies = [
  "wasm-bindgen",
 ]
@@ -141,9 +141,9 @@ checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.65"
+version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f3edbcc9536ab7eababcc6d2374a0b7bfe13a2b6d562c5e07f370456b1a8f33d"
+checksum = "1ac64ead5ea5f05873d7c12b545865ca2b8d28adfc50a49b84770a3a97265d42"
 dependencies = [
  "cfg-if",
  "wasm-bindgen-macro",
@@ -151,9 +151,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.65"
+version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "89ed2fb8c84bfad20ea66b26a3743f3e7ba8735a69fe7d95118c33ec8fc1244d"
+checksum = "f22b422e2a757c35a73774860af8e112bff612ce6cb604224e8e47641a9e4f68"
 dependencies = [
  "bumpalo",
  "lazy_static",
@@ -166,9 +166,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.65"
+version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb071268b031a64d92fc6cf691715ca5a40950694d8f683c5bb43db7c730929e"
+checksum = "6b13312a745c08c469f0b292dd2fcd6411dba5f7160f593da6ef69b64e407038"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -176,9 +176,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.65"
+version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf592c807080719d1ff2f245a687cbadb3ed28b2077ed7084b47aba8b691f2c6"
+checksum = "f249f06ef7ee334cc3b8ff031bfc11ec99d00f34d86da7498396dc1e3b1498fe"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -189,15 +189,15 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.65"
+version = "0.2.68"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "72b6c0220ded549d63860c78c38f3bcc558d1ca3f4efa74942c536ddbbb55e87"
+checksum = "1d649a3145108d7d3fbcde896a468d1bd636791823c9921135218ad89be08307"
 
 [[package]]
 name = "web-sys"
-version = "0.3.42"
+version = "0.3.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8be2398f326b7ba09815d0b403095f34dd708579220d099caae89be0b32137b2"
+checksum = "4bf6ef87ad7ae8008e15a355ce696bed26012b7caa21605188cfd8214ab51e2d"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
diff --git a/codecs/png/Cargo.toml b/codecs/png/Cargo.toml
index 5c784c82..daaaf71d 100644
--- a/codecs/png/Cargo.toml
+++ b/codecs/png/Cargo.toml
@@ -10,14 +10,8 @@ crate-type = ["cdylib"]
 
 [dependencies]
 png = "0.16.7"
-# wasm-bindgen 0.2.66+ emits Wasm using exported mutable globals,
-# which is a stage 4 feature and not well supported.
-# https://github.com/rustwasm/wasm-pack/issues/886
-wasm-bindgen = "=0.2.65"
-# Need to pin web-sys to 0.3.42, because newer versions depend
-# on newer versions of wasm-bindgen.
-web-sys = { version = "=0.3.42", features = ["ImageData"] }
-log = { version = "0.4", features = ["release_max_level_off"] }
+wasm-bindgen = "0.2.68"
+web-sys = { version = "0.3.45", features = ["ImageData"] }
 
 [profile.release]
 lto = true
diff --git a/codecs/png/pkg/squoosh_png.js b/codecs/png/pkg/squoosh_png.js
index a07ed4b7..b011728c 100644
--- a/codecs/png/pkg/squoosh_png.js
+++ b/codecs/png/pkg/squoosh_png.js
@@ -188,16 +188,22 @@ function getArrayU8FromWasm0(ptr, len) {
 * @returns {Uint8Array}
 */
 export function encode(data, width, height) {
-    var ptr0 = passArray8ToWasm0(data, wasm.__wbindgen_malloc);
-    var len0 = WASM_VECTOR_LEN;
-    _assertNum(width);
-    _assertNum(height);
-    wasm.encode(8, ptr0, len0, width, height);
-    var r0 = getInt32Memory0()[8 / 4 + 0];
-    var r1 = getInt32Memory0()[8 / 4 + 1];
-    var v1 = getArrayU8FromWasm0(r0, r1).slice();
-    wasm.__wbindgen_free(r0, r1 * 1);
-    return v1;
+    try {
+        const retptr = wasm.__wbindgen_export_2.value - 16;
+        wasm.__wbindgen_export_2.value = retptr;
+        var ptr0 = passArray8ToWasm0(data, wasm.__wbindgen_malloc);
+        var len0 = WASM_VECTOR_LEN;
+        _assertNum(width);
+        _assertNum(height);
+        wasm.encode(retptr, ptr0, len0, width, height);
+        var r0 = getInt32Memory0()[retptr / 4 + 0];
+        var r1 = getInt32Memory0()[retptr / 4 + 1];
+        var v1 = getArrayU8FromWasm0(r0, r1).slice();
+        wasm.__wbindgen_free(r0, r1 * 1);
+        return v1;
+    } finally {
+        wasm.__wbindgen_export_2.value += 16;
+    }
 }
 
 /**
@@ -303,7 +309,7 @@ async function init(input) {
     }
     const imports = {};
     imports.wbg = {};
-    imports.wbg.__wbg_newwithu8clampedarrayandsh_d46fa191b076edfe = handleError(function(arg0, arg1, arg2, arg3) {
+    imports.wbg.__wbg_newwithu8clampedarrayandsh_104cc36644cfc313 = handleError(function(arg0, arg1, arg2, arg3) {
         var ret = new ImageData(getClampedArrayU8FromWasm0(arg0, arg1), arg2 >>> 0, arg3 >>> 0);
         return addHeapObject(ret);
     });
diff --git a/codecs/png/pkg/squoosh_png_bg.wasm b/codecs/png/pkg/squoosh_png_bg.wasm
index 089b985f..3f81e9a3 100644
Binary files a/codecs/png/pkg/squoosh_png_bg.wasm and b/codecs/png/pkg/squoosh_png_bg.wasm differ
diff --git a/codecs/png/pkg/squoosh_png_bg.d.ts b/codecs/png/pkg/squoosh_png_bg.wasm.d.ts
similarity index 100%
rename from codecs/png/pkg/squoosh_png_bg.d.ts
rename to codecs/png/pkg/squoosh_png_bg.wasm.d.ts