diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 951035c..1c22917 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,6 +10,6 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: deps
-        run: sudo apt install qt6-base-dev qt6-base-private-dev qt6-svg-dev build-essential cmake libxi-dev
+        run: sudo apt install qt6-base-dev qt6-base-private-dev qt6-svg-dev build-essential cmake libxi-dev libxrandr-dev
       - name: make
         run: make -j$(nproc)
diff --git a/README.md b/README.md
index ed76dad..e0ad6e4 100644
--- a/README.md
+++ b/README.md
@@ -27,3 +27,4 @@ Please use after installing to PATH (`sudo make install`)
 - GNU Make
 - CMake
 - Xi
+- LibXRandr