diff --git a/README.md b/README.md
index 3471ebd..c458bae 100644
--- a/README.md
+++ b/README.md
@@ -103,7 +103,7 @@ Surveyed on this machine 2026-09-09 — **most of it is already installed**:
 
 ```bash
 sudo apt update && sudo apt install -y \
-  libqt6svg6-dev \    # GUI: SVG icon rendering
+  qt6-svg-dev \       # GUI: SVG icon rendering
   libsecret-1-dev \   # DAEMON: Secret Service for site logins
   nodejs npm \        # EXT + PROTO: extension build, mockd, conformance runner
   clang               # optional: libFuzzer targets in M7
diff --git a/docs/agents/AGENT-PKG-QA.md b/docs/agents/AGENT-PKG-QA.md
index 9f5f531..c9fda26 100644
--- a/docs/agents/AGENT-PKG-QA.md
+++ b/docs/agents/AGENT-PKG-QA.md
@@ -14,7 +14,7 @@ Do not write feature code in any lane's directory.
 1. **Toolchain script** — `tools/bootstrap.sh` installing the `apt` list in the README,
    verified on a clean 26.04 VM. The dev machine already has git 2.53, CMake 4.2.3,
    g++ 15.2, ninja, Qt 6 dev, libcurl, SQLite, nlohmann-json and ffmpeg; only
-   `libqt6svg6-dev`, `libsecret-1-dev`, `nodejs`/`npm` and (optionally) `clang` are
+   `qt6-svg-dev`, `libsecret-1-dev`, `nodejs`/`npm` and (optionally) `clang` are
    missing. The script must still install the full list for clean machines.
    ⚠ CMake 4.x rejects `cmake_minimum_required` below 3.5 — check every dependency.
 2. **CMake** — top-level `CMakeLists.txt` + `CMakePresets.json` with presets:
diff --git a/tools/bootstrap.sh b/tools/bootstrap.sh
index d032623..45d6e7d 100755
--- a/tools/bootstrap.sh
+++ b/tools/bootstrap.sh
@@ -84,7 +84,9 @@ APT_GUI=(
     qt6-base-dev
     qt6-tools-dev
     qt6-tools-dev-tools        # lrelease/lupdate for i18n
-    libqt6svg6-dev             # GUI: SVG icon rendering
+    qt6-svg-dev                # GUI: SVG icon rendering. Was libqt6svg6-dev, which has no
+                              #      candidate on 26.04; qt6-svg-dev is the package that
+                              #      ships the headers + Qt6SvgConfig.cmake find_package needs.
 )
 
 APT_LINT=(