diff --git a/Cargo.toml b/Cargo.toml
index 71ac872..3235400 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "blake3"
-version = "1.5.2"
+version = "1.5.3"
 authors = ["Jack O'Connor <oconnor663@gmail.com>", "Samuel Neves"]
 description = "the BLAKE3 hash function"
 repository = "https://github.com/BLAKE3-team/BLAKE3"
diff --git a/b3sum/Cargo.lock b/b3sum/Cargo.lock
index 153424e..315be0f 100644
--- a/b3sum/Cargo.lock
+++ b/b3sum/Cargo.lock
@@ -71,7 +71,7 @@ checksum = "96d30a06541fbafbc7f82ed10c06164cfbd2c401138f6addd8404629c4b16711"
 
 [[package]]
 name = "b3sum"
-version = "1.5.2"
+version = "1.5.3"
 dependencies = [
  "anyhow",
  "blake3",
@@ -91,7 +91,7 @@ checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
 
 [[package]]
 name = "blake3"
-version = "1.5.2"
+version = "1.5.3"
 dependencies = [
  "arrayref",
  "arrayvec",
diff --git a/b3sum/Cargo.toml b/b3sum/Cargo.toml
index 5b77425..1ca9810 100644
--- a/b3sum/Cargo.toml
+++ b/b3sum/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "b3sum"
-version = "1.5.2"
+version = "1.5.3"
 authors = ["Jack O'Connor <oconnor663@gmail.com>"]
 description = "a command line implementation of the BLAKE3 hash function"
 repository = "https://github.com/BLAKE3-team/BLAKE3"
diff --git a/c/CMakeLists.txt b/c/CMakeLists.txt
index 3d674f9..2b93e85 100644
--- a/c/CMakeLists.txt
+++ b/c/CMakeLists.txt
@@ -10,7 +10,7 @@ if (POLICY CMP0102)
 endif()
 
 project(libblake3
-  VERSION 1.5.2
+  VERSION 1.5.3
   DESCRIPTION "BLAKE3 C implementation"
   LANGUAGES C ASM
 )
diff --git a/c/blake3.h b/c/blake3.h
index c38545f..3ca61db 100644
--- a/c/blake3.h
+++ b/c/blake3.h
@@ -30,7 +30,7 @@
 extern "C" {
 #endif
 
-#define BLAKE3_VERSION_STRING "1.5.2"
+#define BLAKE3_VERSION_STRING "1.5.3"
 #define BLAKE3_KEY_LEN 32
 #define BLAKE3_OUT_LEN 32
 #define BLAKE3_BLOCK_LEN 64