diff --git a/euler/Cargo.toml b/euler/Cargo.toml
index c68649c..2bbda8e 100644
--- a/euler/Cargo.toml
+++ b/euler/Cargo.toml
@@ -15,7 +15,7 @@ sbp = { path = "../sbp" }
 arrayvec = "0.5.1"
 
 [dev-dependencies]
-criterion = "0.3.1"
+criterion = "0.3.2"
 
 [[bench]]
 name = "bench"
diff --git a/multigrid/Cargo.toml b/multigrid/Cargo.toml
index 989ab30..96bc3a2 100644
--- a/multigrid/Cargo.toml
+++ b/multigrid/Cargo.toml
@@ -8,10 +8,10 @@ edition = "2018"
 [dependencies]
 sbp = { path = "../sbp", features = ["rayon"] }
 euler = { path = "../euler" }
-hdf5 = { version = "0.6.0", features = ["static", "gzip"] }
+hdf5 = { version = "0.6.1", features = ["static", "gzip"] }
 rayon = "1.3.0"
 indicatif = "0.14.0"
-structopt = "0.3.13"
-ndarray = "0.13.0"
+structopt = "0.3.14"
+ndarray = "0.13.1"
 json = "0.12.4"
 either = "1.5.3"
diff --git a/webfront/Cargo.toml b/webfront/Cargo.toml
index 7aadeda..13da4cd 100644
--- a/webfront/Cargo.toml
+++ b/webfront/Cargo.toml
@@ -9,13 +9,13 @@ crate-type = ["cdylib"]
 path = "lib.rs"
 
 [dependencies]
-wasm-bindgen = "0.2.60"
+wasm-bindgen = "0.2.63"
 console_error_panic_hook = "0.1.6"
 wee_alloc = "0.4.5"
 sbp = { path = "../sbp", features = ["f32"] }
-ndarray = "0.13.0"
+ndarray = "0.13.1"
 euler = { path = "../euler" }
-maxwell = { path = "../maxwell" }
+maxwell = { path = "../maxwell", features = ["sparse"] }
 shallow-water = { path = "../shallow_water" }
 console_log = "0.2.0"
 log = "0.4.8"
diff --git a/webfront/make_wasm.py b/webfront/make_wasm.py
index f5a7754..d087c61 100755
--- a/webfront/make_wasm.py
+++ b/webfront/make_wasm.py
@@ -28,7 +28,7 @@ if __name__ == "__main__":
     command = ["cargo", "build", "--target", target_triple]
     env = os.environ.copy()
     if args.release:
-        env["RUSTFLAGS"] = "-C opt-level=3 -C codegen-units=1 -C lto=fat"
+        env["RUSTFLAGS"] = "-C opt-level=3 -C codegen-units=1 -C lto=fat -C embed-bitcode"
         command.append("--release")
 
     check_call(command, env=env)