apt update seems to be necessary
diff --git a/.github/workflows/c-cpp.yml b/.github/workflows/c-cpp.yml
index 8417b24..e4825cd 100644
--- a/.github/workflows/c-cpp.yml
+++ b/.github/workflows/c-cpp.yml
@@ -22,7 +22,9 @@
     - name: download Boost
       run: make boost
     - name: install PostgreSQL
-      run: sudo apt-get -y install postgresql-14 postgresql-client-14 postgresql-server-dev-14 libpq-dev
+      run: |
+        sudo apt update
+        sudo apt -y install postgresql-14 postgresql-client-14 postgresql-server-dev-14 libpq-dev
     - name: make
       run: make
     - name: install