diff --git a/.github/workflows/lock.yaml b/.github/workflows/lock.yaml
index 2f5e1c8..3f5a74a 100644
--- a/.github/workflows/lock.yaml
+++ b/.github/workflows/lock.yaml
@@ -12,10 +12,10 @@ jobs:
     name: 🔒 Lock closed issues and PRs
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/lock-threads@v3.0.0
+      - uses: dessant/lock-threads@v2.1.2
         with:
           github-token: ${{ github.token }}
-          issue-inactive-days: "30"
+          issue-lock-inactive-days: "30"
           issue-lock-reason: ""
-          pr-inactive-days: "1"
+          pr-lock-inactive-days: "1"
           pr-lock-reason: ""
diff --git a/mopidy/Dockerfile b/mopidy/Dockerfile
index c16f449..a5c50a9 100755
--- a/mopidy/Dockerfile
+++ b/mopidy/Dockerfile
@@ -1,4 +1,4 @@
-ARG BUILD_FROM=ghcr.io/hassio-addons/debian-base/amd64:5.1.1
+ARG BUILD_FROM=ghcr.io/hassio-addons/debian-base/amd64:4.2.2
 # hadolint ignore=DL3006
 FROM ${BUILD_FROM}
 
@@ -13,11 +13,11 @@ RUN \
     apt-get update \
     \
     && apt-get install -y --no-install-recommends \
-        dirmngr=2.2.27-2 \
-        gpg-agent=2.2.27-2 \
-        gpg=2.2.27-2 \
-        nginx=1.18.0-6.1 \
-        git=1:2.30.2-1 \
+        dirmngr=2.2.12-1+deb10u1 \
+        gpg-agent=2.2.12-1+deb10u1 \
+        gpg=2.2.12-1+deb10u1 \
+        nginx=1.14.2-2+deb10u4 \
+        git=1:2.20.1-2+deb10u3 \
     \
     && curl -L https://apt.mopidy.com/mopidy.gpg | apt-key add - \
     && curl -L https://apt.mopidy.com/mopidy.list -o /etc/apt/sources.list.d/mopidy.list \
@@ -25,30 +25,30 @@ RUN \
     && apt-get update \
     \
     && apt-get install -y --no-install-recommends \
-        libffi-dev=3.3-6 \
-        libxml2-dev=2.9.10+dfsg-6.7 \
-        libxslt1-dev=1.1.34-4 \
-        libasound2-dev=1.2.4-1.1 \
+        libffi-dev=3.2.1-9 \
+        libxml2-dev=2.9.4+dfsg1-7+deb10u2 \
+        libxslt1-dev=1.1.32-2.2~deb10u1 \
+        libasound2-dev=1.1.8-1 \
         libspotify12=12.1.51-1 \
         libspotify-dev=12.1.51-1 \
-        zlib1g-dev=1:1.2.11.dfsg-2 \
-        build-essential=12.9 \
-        python3-dev=3.9.2-3 \
-        python3-gi=3.38.0-2 \
-        python3-gst-1.0=1.18.3-1 \
-        gstreamer1.0-alsa=1.18.4-2 \
-        gstreamer1.0-plugins-bad=1.18.4-3 \
-        gstreamer1.0-plugins-good=1.18.4-2 \
-        gstreamer1.0-plugins-ugly=1.18.4-2 \
-        gstreamer1.0-pulseaudio=1.18.4-2 \
+        zlib1g-dev=1:1.2.11.dfsg-1 \
+        build-essential=12.6 \
+        python3-dev=3.7.3-1 \
+        python3-gi=3.30.4-1 \
+        python3-gst-1.0=1.14.4-1+b1 \
+        gstreamer1.0-alsa=1.14.4-2+deb10u1 \
+        gstreamer1.0-plugins-bad=1.14.4-1+deb10u2 \
+        gstreamer1.0-plugins-good=1.14.4-1+deb10u1 \
+        gstreamer1.0-plugins-ugly=1.14.4-1+deb10u1 \
+        gstreamer1.0-pulseaudio=1.14.4-1+deb10u1 \
     \
     && curl https://bootstrap.pypa.io/get-pip.py | python3 \
     && pip3 install --no-cache-dir -r /tmp/requirements.txt \
     \
-    && find /usr/local \
-        \( -type d -a -name test -o -name tests -o -name '__pycache__' \) \
-        -o \( -type f -a -name '*.pyc' -o -name '*.pyo' \) \
-        -exec rm -rf '{}' + \
+    && find /usr/local/lib/python3.7/ -type d -name tests -depth -exec rm -rf {} \; \
+    && find /usr/local/lib/python3.7/ -type d -name test -depth -exec rm -rf {} \; \
+    && find /usr/local/lib/python3.7/ -name __pycache__ -depth -exec rm -rf {} \; \
+    && find /usr/local/lib/python3.7/ -name "*.pyc" -depth -exec rm -f {} \; \
     \
     && apt-get purge -y --auto-remove \
         dirmngr \
diff --git a/mopidy/build.json b/mopidy/build.json
index 1f52b14..33b71a9 100644
--- a/mopidy/build.json
+++ b/mopidy/build.json
@@ -1,5 +1,5 @@
 {
   "build_from": {
-    "amd64": "ghcr.io/hassio-addons/debian-base/amd64:5.1.1"
+    "amd64": "ghcr.io/hassio-addons/debian-base/amd64:4.2.2"
   }
 }