diff --git a/imagequant-sys/c_test/Cargo.toml b/imagequant-sys/c_test/Cargo.toml
index 479d7e5..60557c0 100644
--- a/imagequant-sys/c_test/Cargo.toml
+++ b/imagequant-sys/c_test/Cargo.toml
@@ -11,7 +11,7 @@ doctest = false
 release = false
 
 [dependencies]
-imagequant-sys = { version = "4.0.0", path = ".." }
+imagequant-sys = { version = "4.0.3", path = ".." }
 
 [build-dependencies]
 cc = "1.0.72"
diff --git a/imagequant-sys/libimagequant.h b/imagequant-sys/libimagequant.h
index e141d1f..ed84de0 100644
--- a/imagequant-sys/libimagequant.h
+++ b/imagequant-sys/libimagequant.h
@@ -13,8 +13,8 @@
 #define LIQ_EXPORT extern
 #endif
 
-#define LIQ_VERSION 40000
-#define LIQ_VERSION_STRING "4.0.0"
+#define LIQ_VERSION 40003
+#define LIQ_VERSION_STRING "4.0.3"
 
 #ifndef LIQ_PRIVATE
 #if defined(__GNUC__) || defined (__llvm__)
diff --git a/imagequant-sys/pom.xml b/imagequant-sys/pom.xml
index df93f7d..5ff7d85 100644
--- a/imagequant-sys/pom.xml
+++ b/imagequant-sys/pom.xml
@@ -4,7 +4,7 @@
   <groupId>org.pngquant</groupId>
   <artifactId>libimagequant</artifactId>
   <packaging>jar</packaging>
-  <version>4.0.0</version>
+  <version>4.0.3</version>
   <name>pngquant</name>
   <url>https://pngquant.org</url>
   <build>
diff --git a/src/capi.rs b/src/capi.rs
index dbd5fd0..36838a9 100644
--- a/src/capi.rs
+++ b/src/capi.rs
@@ -15,7 +15,7 @@ use crate::QuantizationResult;
 use crate::RGBA;
 use std::mem::MaybeUninit;
 
-pub const LIQ_VERSION: u32 = 40000;
+pub const LIQ_VERSION: u32 = 40202;
 
 #[must_use]
 pub fn liq_get_palette_impl(r: &mut QuantizationResult) -> &Palette {