diff --git a/agb/Cargo.lock b/agb/Cargo.lock
index f0b61e77..3309b00a 100644
--- a/agb/Cargo.lock
+++ b/agb/Cargo.lock
@@ -2,12 +2,6 @@
 # It is not intended for manual editing.
 version = 3
 
-[[package]]
-name = "adler"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
-
 [[package]]
 name = "adler32"
 version = "1.2.0"
@@ -24,9 +18,9 @@ dependencies = [
 
 [[package]]
 name = "agb_image_converter"
-version = "0.2.0"
+version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca794e5a063a7031862a2726fd48dd91f5faf5be579f58a83d7fa6f9d24e9663"
+checksum = "63c48ea2b7f5bb3c4605234f6355218401a840055ce703602b8266076a1e6f30"
 dependencies = [
  "image",
  "typed-builder",
@@ -77,50 +71,6 @@ dependencies = [
  "cfg-if",
 ]
 
-[[package]]
-name = "crossbeam-channel"
-version = "0.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06ed27e177f16d65f0f0c22a213e17c696ace5dd64b14258b52f9417ccb52db4"
-dependencies = [
- "cfg-if",
- "crossbeam-utils",
-]
-
-[[package]]
-name = "crossbeam-deque"
-version = "0.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "94af6efb46fef72616855b036a624cf27ba656ffc9be1b9a3c931cfc7749a9a9"
-dependencies = [
- "cfg-if",
- "crossbeam-epoch",
- "crossbeam-utils",
-]
-
-[[package]]
-name = "crossbeam-epoch"
-version = "0.9.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ec02e091aa634e2c3ada4a392989e7c3116673ef0ac5b72232439094d73b7fd"
-dependencies = [
- "cfg-if",
- "crossbeam-utils",
- "lazy_static",
- "memoffset",
- "scopeguard",
-]
-
-[[package]]
-name = "crossbeam-utils"
-version = "0.8.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d82cfc11ce7f2c3faef78d8a684447b40d503d9681acebed6cb728d45940c4db"
-dependencies = [
- "cfg-if",
- "lazy_static",
-]
-
 [[package]]
 name = "deflate"
 version = "0.8.6"
@@ -131,31 +81,6 @@ dependencies = [
  "byteorder",
 ]
 
-[[package]]
-name = "either"
-version = "1.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e78d4f1cc4ae33bbfc157ed5d5a5ef3bc29227303d595861deb238fcec4e9457"
-
-[[package]]
-name = "gif"
-version = "0.11.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a668f699973d0f573d15749b7002a9ac9e1f9c6b220e7b165601334c173d8de"
-dependencies = [
- "color_quant",
- "weezl",
-]
-
-[[package]]
-name = "hermit-abi"
-version = "0.1.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
-dependencies = [
- "libc",
-]
-
 [[package]]
 name = "image"
 version = "0.23.14"
@@ -165,44 +90,10 @@ dependencies = [
  "bytemuck",
  "byteorder",
  "color_quant",
- "gif",
- "jpeg-decoder",
  "num-iter",
  "num-rational",
  "num-traits",
  "png",
- "scoped_threadpool",
- "tiff",
-]
-
-[[package]]
-name = "jpeg-decoder"
-version = "0.1.22"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "229d53d58899083193af11e15917b5640cd40b29ff475a1fe4ef725deb02d0f2"
-dependencies = [
- "rayon",
-]
-
-[[package]]
-name = "lazy_static"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
-
-[[package]]
-name = "libc"
-version = "0.2.97"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12b8adadd720df158f4d70dfe7ccc6adb0472d7c55ca83445f6a5ab3e36f8fb6"
-
-[[package]]
-name = "memoffset"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59accc507f1338036a0477ef61afdae33cde60840f4dfe481319ce3ad116ddf9"
-dependencies = [
- "autocfg",
 ]
 
 [[package]]
@@ -214,16 +105,6 @@ dependencies = [
  "adler32",
 ]
 
-[[package]]
-name = "miniz_oxide"
-version = "0.4.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b"
-dependencies = [
- "adler",
- "autocfg",
-]
-
 [[package]]
 name = "num-integer"
 version = "0.1.44"
@@ -265,16 +146,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "num_cpus"
-version = "1.13.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
-dependencies = [
- "hermit-abi",
- "libc",
-]
-
 [[package]]
 name = "png"
 version = "0.16.8"
@@ -284,7 +155,7 @@ dependencies = [
  "bitflags",
  "crc32fast",
  "deflate",
- "miniz_oxide 0.3.7",
+ "miniz_oxide",
 ]
 
 [[package]]
@@ -305,43 +176,6 @@ dependencies = [
  "proc-macro2",
 ]
 
-[[package]]
-name = "rayon"
-version = "1.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c06aca804d41dbc8ba42dfd964f0d01334eceb64314b9ecf7c5fad5188a06d90"
-dependencies = [
- "autocfg",
- "crossbeam-deque",
- "either",
- "rayon-core",
-]
-
-[[package]]
-name = "rayon-core"
-version = "1.9.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d78120e2c850279833f1dd3582f730c4ab53ed95aeaaaa862a2a5c71b1656d8e"
-dependencies = [
- "crossbeam-channel",
- "crossbeam-deque",
- "crossbeam-utils",
- "lazy_static",
- "num_cpus",
-]
-
-[[package]]
-name = "scoped_threadpool"
-version = "0.1.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1d51f5df5af43ab3f1360b429fa5e0152ac5ce8c0bd6485cae490332e96846a8"
-
-[[package]]
-name = "scopeguard"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
-
 [[package]]
 name = "syn"
 version = "1.0.73"
@@ -353,17 +187,6 @@ dependencies = [
  "unicode-xid",
 ]
 
-[[package]]
-name = "tiff"
-version = "0.6.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a53f4706d65497df0c4349241deddf35f84cee19c87ed86ea8ca590f4464437"
-dependencies = [
- "jpeg-decoder",
- "miniz_oxide 0.4.4",
- "weezl",
-]
-
 [[package]]
 name = "typed-builder"
 version = "0.9.0"
@@ -380,9 +203,3 @@ name = "unicode-xid"
 version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8ccb82d61f80a663efe1f787a51b16b5a51e3314d6ac365b08639f52387b33f3"
-
-[[package]]
-name = "weezl"
-version = "0.1.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8b77fdfd5a253be4ab714e4ffa3c49caf146b4de743e97510c0656cf90f1e8e"
diff --git a/agb/Cargo.toml b/agb/Cargo.toml
index 8b986ef9..3dd3d375 100644
--- a/agb/Cargo.toml
+++ b/agb/Cargo.toml
@@ -21,7 +21,7 @@ lto = true
 bitflags = "1.0"
 
 [build-dependencies]
-agb_image_converter = "0.2.0"
+agb_image_converter = "0.4.0"
 
 [package.metadata.docs.rs]
 default-target = "thumbv6m-none-eabi"