diff --git a/ghostty-build-update.sh b/ghostty-build-update.sh
index 7ac1a74..cecdcb8 100644
--- a/ghostty-build-update.sh
+++ b/ghostty-build-update.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 #Script to build ghostty from source. It automatically grabs required zig version binary.
-#v1.0.5
+#v1.0.6
 
 set -euo pipefail
 
@@ -77,7 +77,7 @@ resolve_zig_version() {
   case "$GHOSTTY_VERSION" in
     1.0.*|1.1.*) echo "0.13.0" ;;
     1.2.*) echo "0.14.1" ;;
-    tip) echo "0.14.1" ;;
+    tip) echo "0.15.1" ;;
     v*)  
       local ver="${GHOSTTY_VERSION#v}"
       case "$ver" in
@@ -131,7 +131,7 @@ setup_zig() {
 
 # === Install build dependencies ===
 install_deps_linux() {
-  if ! command_exists apt-get && ! command_exists pacman && ! command_exists dnf; then
+  if ! command_exists apt && ! command_exists pacman && ! command_exists dnf; then
     error "No supported package manager found (apt, pacman, dnf). Install dependencies manually."
   fi
 
@@ -141,41 +141,41 @@ install_deps_linux() {
     distro="$ID"
   fi
 
-  if command_exists apt-get; then
-    info "Installing dependencies via apt-get..."
-    sudo apt-get update
+  if command_exists apt; then
+    info "Installing dependencies via apt..."
+    sudo apt update
 
     # Base packages
-    sudo apt-get install -y git libgtk-4-dev gettext libxml2-utils pkg-config curl tar xz-utils g++
+    sudo apt install -y git libgtk-4-dev gettext libxml2-utils pkg-config curl tar xz-utils g++
 
     # Harfbuzz development
-    sudo apt-get install -y libharfbuzz-dev libharfbuzz-gobject0
+    sudo apt install -y libharfbuzz-dev libharfbuzz-gobject0
 
-    # GTK Blueprint compiler
-    sudo apt-get install -y blueprint-compiler
+    # GTK Blueprint compiler will be checked/built later
+    sudo apt install -y cmake ninja-build
 
     # libadwaita package
     case "$distro" in
       ubuntu|debian)
-        if ! sudo apt-get install -y libadwaita-1-dev; then
-          sudo apt-get install -y libadwaita-dev || true
+        if ! sudo apt install -y libadwaita-1-dev; then
+          sudo apt install -y libadwaita-dev || true
         fi
         ;;
       *)
-        sudo apt-get install -y libadwaita-1-dev libadwaita-dev || true
+        sudo apt install -y libadwaita-1-dev libadwaita-dev || true
         ;;
     esac
 
     # GTK layer-shell package
     case "$distro" in
       ubuntu)
-        sudo apt-get install -y libgtk-layer-shell-dev || true
+        sudo apt install -y libgtk-layer-shell-dev || true
         ;;
       debian)
-        sudo apt-get install -y libgtk4-layer-shell-dev || true
+        sudo apt install -y libgtk4-layer-shell-dev || true
         ;;
       *)
-        sudo apt-get install -y libgtk4-layer-shell-dev libgtk-layer-shell-dev || true
+        sudo apt install -y libgtk4-layer-shell-dev libgtk-layer-shell-dev || true
         ;;
     esac
 
@@ -189,6 +189,28 @@ install_deps_linux() {
   fi
 }
 
+# === Ensure blueprint-compiler >=16 ===
+ensure_blueprint_compiler() {
+    local min_ver=16
+    if command_exists blueprint-compiler; then
+        ver=$(blueprint-compiler --version | awk '{print $1}' | cut -d. -f1)
+        if (( ver >= min_ver )); then
+            info "blueprint-compiler version $ver is sufficient."
+            return
+        fi
+    fi
+
+    info "Building latest blueprint-compiler locally..."
+    cd "$BUILD_DIR"
+    rm -rf blueprint-src
+    git clone https://gitlab.gnome.org/GNOME/blueprint.git blueprint-src
+    cd blueprint-src
+    cmake -B build -S . -DCMAKE_BUILD_TYPE=Release
+    cmake --build build
+    export PATH="$PWD/build:$PATH"
+    info "Using locally built blueprint-compiler at $(which blueprint-compiler)"
+}
+
 # === Clone Ghostty repo and checkout version ===
 fetch_source_git() {
   if [ ! -d "ghostty" ]; then
@@ -225,6 +247,7 @@ main() {
   choose_version
   if [[ "$(uname -s)" == "Linux" ]]; then
     install_deps_linux
+    ensure_blueprint_compiler
   fi
   local zig_ver
   zig_ver=$(resolve_zig_version)