diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index 90a34f53e..0c460eb9f 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -16,6 +16,7 @@ jobs:
       - name: Check symlinks and build theme
         shell: bash
         run: |
+          sudo apt-get update
           sudo apt install -y libgtk-3-dev optipng --no-install-recommends
           ./configure
           make test
diff --git a/.github/workflows/symlinks-check.yml b/.github/workflows/symlinks-check.yml
index 63bc09dd2..50bd03a00 100644
--- a/.github/workflows/symlinks-check.yml
+++ b/.github/workflows/symlinks-check.yml
@@ -17,6 +17,7 @@ jobs:
       - name: Check symlinks
         shell: bash
         run: |
+          sudo apt-get update
           sudo apt install -y libgtk-3-dev --no-install-recommends
           ./configure
           make test