diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 37dab39a..85a05916 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -92,8 +92,7 @@ jobs:
       - name: wasm-bindgen
         uses: jetli/wasm-bindgen-action@v0.1.0
         with:
-          # Keep wasm-bindgen in sync in: setup_web.sh, Cargo.toml, Cargo.lock, rust.yml
-          version: "0.2.104"
+          version: "0.2.100" # Keep wasm-bindgen version in sync in: setup_web.sh, Cargo.toml, Cargo.lock, rust.yml
 
       - run: ./scripts/wasm_bindgen_check.sh --skip-setup
 
diff --git a/Cargo.lock b/Cargo.lock
index aba222cc..c04f66c4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -888,7 +888,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "117725a109d387c937a1533ce01b450cbde6b88abceea8473c4d7a85853cda3c"
 dependencies = [
  "lazy_static",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -1184,7 +1184,7 @@ dependencies = [
  "libc",
  "option-ext",
  "redox_users",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -2472,9 +2472,9 @@ checksum = "00810f1d8b74be64b13dbf3db89ac67740615d6c891f0e7b6179326533011a07"
 
 [[package]]
 name = "js-sys"
-version = "0.3.81"
+version = "0.3.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec48937a97411dcb524a265206ccd4c90bb711fca92b2792c407f268825b9305"
+checksum = "1cfaf33c695fc6e08064efbc1f72ec937429614f25eef83af942d0e227c3a28f"
 dependencies = [
  "once_cell",
  "wasm-bindgen",
@@ -4278,7 +4278,7 @@ dependencies = [
  "getrandom 0.3.1",
  "once_cell",
  "rustix 1.0.8",
- "windows-sys 0.60.2",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -4767,22 +4767,21 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen"
-version = "0.2.104"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1da10c01ae9f1ae40cbfac0bac3b1e724b320abfcf52229f80b547c0d250e2d"
+checksum = "1edc8929d7499fc4e8f0be2262a241556cfc54a0bea223790e71446f2aab1ef5"
 dependencies = [
  "cfg-if",
  "once_cell",
  "rustversion",
  "wasm-bindgen-macro",
- "wasm-bindgen-shared",
 ]
 
 [[package]]
 name = "wasm-bindgen-backend"
-version = "0.2.104"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "671c9a5a66f49d8a47345ab942e2cb93c7d1d0339065d4f8139c486121b43b19"
+checksum = "2f0a0651a5c2bc21487bde11ee802ccaf4c51935d0d3d42a6101f98161700bc6"
 dependencies = [
  "bumpalo",
  "log",
@@ -4794,9 +4793,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-futures"
-version = "0.4.54"
+version = "0.4.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7e038d41e478cc73bae0ff9b36c60cff1c98b8f38f8d7e8061e79ee63608ac5c"
+checksum = "555d470ec0bc3bb57890405e5d4322cc9ea83cebb085523ced7be4144dac1e61"
 dependencies = [
  "cfg-if",
  "js-sys",
@@ -4807,9 +4806,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro"
-version = "0.2.104"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7ca60477e4c59f5f2986c50191cd972e3a50d8a95603bc9434501cf156a9a119"
+checksum = "7fe63fc6d09ed3792bd0897b314f53de8e16568c2b3f7982f468c0bf9bd0b407"
 dependencies = [
  "quote",
  "wasm-bindgen-macro-support",
@@ -4817,9 +4816,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-macro-support"
-version = "0.2.104"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9f07d2f20d4da7b26400c9f4a0511e6e0345b040694e8a75bd41d578fa4421d7"
+checksum = "8ae87ea40c9f689fc23f209965b6fb8a99ad69aeeb0231408be24920604395de"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4830,9 +4829,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-bindgen-shared"
-version = "0.2.104"
+version = "0.2.100"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bad67dc8b2a1a6e5448428adec4c3e84c43e561d8c9ee8a9e5aabeb193ec41d1"
+checksum = "1a05d73b933a847d6cccdda8f838a22ff101ad9bf93e33684f39c1f5f0eece3d"
 dependencies = [
  "unicode-ident",
 ]
@@ -4948,9 +4947,9 @@ dependencies = [
 
 [[package]]
 name = "web-sys"
-version = "0.3.81"
+version = "0.3.77"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9367c417a924a74cae129e6a2ae3b47fabb1f8995595ab474029da749a8be120"
+checksum = "33b6dd2ef9186f1f2072e409e99cd22a975331a6b3591b12c764e0e55c60d5d2"
 dependencies = [
  "js-sys",
  "wasm-bindgen",
@@ -5180,7 +5179,7 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf221c93e13a30d793f7645a0e7762c55d169dbb0a49671918a2319d289b10bb"
 dependencies = [
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index f61bfc7a..35ca02fa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -96,7 +96,7 @@ glutin = { version = "0.32.3", default-features = false }
 glutin-winit = { version = "0.5.0", default-features = false }
 home = "0.5.9"
 image = { version = "0.25.6", default-features = false }
-js-sys = "0.3.81"
+js-sys = "0.3.77"
 kittest = { version = "0.2.0", git = "https://github.com/rerun-io/kittest.git" }
 log = { version = "0.4.28", features = ["std"] }
 memoffset = "0.9.1"
@@ -134,10 +134,10 @@ tokio = "1.47.1"
 type-map = "0.5.1"
 unicode_names2 = { version = "2.0.0", default-features = false }
 unicode-segmentation = "1.12.0"
-wasm-bindgen = "0.2.104" # Keep wasm-bindgen in sync in: setup_web.sh, Cargo.toml, Cargo.lock, rust.yml
-wasm-bindgen-futures = "0.4.54"
+wasm-bindgen = "0.2.100"  # Keep wasm-bindgen version in sync in: setup_web.sh, Cargo.toml, Cargo.lock, rust.yml
+wasm-bindgen-futures = "0.4.0"
 wayland-cursor = { version = "0.31.11", default-features = false }
-web-sys = "0.3.81"
+web-sys = "0.3.77"
 web-time = "1.1.0" # Timekeeping for native and web
 webbrowser = "1.0.5"
 wgpu = { version = "27.0.1", default-features = false, features = ["std"] }
diff --git a/scripts/setup_web.sh b/scripts/setup_web.sh
index 2c5f87c0..f5125885 100755
--- a/scripts/setup_web.sh
+++ b/scripts/setup_web.sh
@@ -9,7 +9,7 @@ set -x
 rustup target add wasm32-unknown-unknown
 
 # For generating JS bindings:
-# Keep wasm-bindgen in sync in: setup_web.sh, Cargo.toml, Cargo.lock, rust.yml
-if ! cargo install --list | grep -q 'wasm-bindgen-cli v0.2.104'; then
-    cargo install --force --quiet wasm-bindgen-cli --version 0.2.104
+# Keep wasm-bindgen version in sync in: setup_web.sh, Cargo.toml, Cargo.lock, rust.yml
+if ! cargo install --list | grep -q 'wasm-bindgen-cli v0.2.100'; then
+    cargo install --force --quiet wasm-bindgen-cli --version 0.2.100
 fi