diff --git a/build.sh b/build.sh
index dd77fc3..186239f 100755
--- a/build.sh
+++ b/build.sh
@@ -103,7 +103,7 @@ bundle_venv() {
   # (no nested virtualenv layer — keeps the bundle a few MB smaller and
   # avoids a redundant Python symlink dance).
   echo "  Installing stackvox..."
-  "$venv_dir/bin/python3" -m pip install --no-cache-dir --quiet 'stackvox>=0.7.0'
+  "$venv_dir/bin/python3" -m pip install --no-cache-dir --quiet 'stackvox>=0.9.0'
 
   # Strip __pycache__ and pip caches to shrink the bundle. These can be
   # regenerated by the bundled Python at first import — small startup
diff --git a/install.sh b/install.sh
index f3ff796..ac9797b 100755
--- a/install.sh
+++ b/install.sh
@@ -89,7 +89,7 @@ find_python() {
 echo ""
 echo "# STAGE: venv"
 echo "Setting up voice engine..."
-STACKVOX_SPEC="stackvox>=0.7.0"
+STACKVOX_SPEC="stackvox>=0.9.0"
 PYTHON=$(find_python)
 if [[ -z "$PYTHON" ]]; then
   echo ""