diff --git a/.gitea/workflows/release.yml b/.gitea/workflows/release.yml
index a8578e1..bada93d 100644
--- a/.gitea/workflows/release.yml
+++ b/.gitea/workflows/release.yml
@@ -31,7 +31,14 @@ jobs:
         # actions/setup-java не всегда передаёт JAVA_HOME дальше в Gitea Actions.
         run: |
           set -euxo pipefail
-          apt-get update -o Acquire::Check-Valid-Until=false
+          cat > /etc/apt/sources.list <<EOF
+          deb http://archive.debian.org/debian/ bullseye main contrib non-free
+          deb http://archive.debian.org/debian/ bullseye-updates main contrib non-free
+          deb http://archive.debian.org/debian-security/ bullseye-security main contrib non-free
+          EOF
+          echo 'Acquire::Check-Valid-Until "false";' > /etc/apt/apt.conf.d/99no-check-valid
+          rm -rf /var/lib/apt/lists/*
+          apt-get update
           apt-get install -y --no-install-recommends openjdk-17-jdk
           java -version