diff --git a/argon2/_asm/go.mod b/argon2/_asm/go.mod
index 2af5d96..395b7b1 100644
--- a/argon2/_asm/go.mod
+++ b/argon2/_asm/go.mod
@@ -2,7 +2,7 @@ module argon2/_asm
 
 go 1.25.0
 
-toolchain go1.26.2
+toolchain go1.26.3
 
 require (
 	github.com/go-crypt/x v0.4.14
diff --git a/blake2b/_asm/standard/go.mod b/blake2b/_asm/standard/go.mod
index 9029ff6..adfa165 100644
--- a/blake2b/_asm/standard/go.mod
+++ b/blake2b/_asm/standard/go.mod
@@ -2,7 +2,7 @@ module blake2b/_asm
 
 go 1.25.0
 
-toolchain go1.26.2
+toolchain go1.26.3
 
 require (
 	github.com/go-crypt/x v0.4.14
diff --git a/go.mod b/go.mod
index b447653..90cef89 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module github.com/go-crypt/x
 
 go 1.25.0
 
-toolchain go1.26.2
+toolchain go1.26.3
 
 require (
 	github.com/stretchr/testify v1.11.1