diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2c61352db..c79a9e400 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -19,9 +19,7 @@ jobs:
           persist-credentials: false
       - name: Clone uAssets
         run: |
-          pushd ..
-          git clone --depth 1 https://github.com/uBlockOrigin/uAssets.git
-          popd
+          git submodule update --depth 1 --init
       # https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html
       - name: Get release information
         id: release_info
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 000000000..3c5855f81
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "submodules/uAssets"]
+	path = submodules/uAssets
+	url = https://github.com/uBlockOrigin/uAssets.git
diff --git a/submodules/uAssets b/submodules/uAssets
new file mode 160000
index 000000000..fabf04d2e
--- /dev/null
+++ b/submodules/uAssets
@@ -0,0 +1 @@
+Subproject commit fabf04d2e6761a733cef539a57267e5133ffb6c9
diff --git a/tools/make-assets.sh b/tools/make-assets.sh
index 2962a3e1e..1c1188abf 100755
--- a/tools/make-assets.sh
+++ b/tools/make-assets.sh
@@ -11,15 +11,8 @@ cp -R ./assets $DES/
 
 mkdir $DES/thirdparties
 
-# Use existing uAssets, or git-clone a temporary one
-if [ -d "../uAssets" ]; then
-    UASSETS=../uAssets
-else
-    echo "*** ../uAssets not present, git-cloning..."
-    TMPDIR=$(mktemp -d)
-    UASSETS=$TMPDIR/uAssets
-    git clone --depth=1 https://github.com/uBlockOrigin/uAssets.git $UASSETS
-fi
+git submodule update --depth 1 --init
+UASSETS=submodules/uAssets
 
 cp -R $UASSETS/thirdparties/easylist-downloads.adblockplus.org $DES/thirdparties/
 cp -R $UASSETS/thirdparties/pgl.yoyo.org                       $DES/thirdparties/
@@ -30,9 +23,3 @@ mkdir $DES/ublock
 cp -R $UASSETS/filters/* $DES/ublock/
 # Optional filter lists: do not include in package
 rm    $DES/ublock/annoyances.txt
-
-# Remove temporary git-clone uAssets
-if [ -n "$TMPDIR" ]; then
-    echo "*** Removing temporary $TMPDIR"
-    rm -rf $TMPDIR
-fi
diff --git a/tools/make-browser.sh b/tools/make-browser.sh
index 700157d19..4343d9f7d 100755
--- a/tools/make-browser.sh
+++ b/tools/make-browser.sh
@@ -25,9 +25,9 @@ cp -R src/lib/publicsuffixlist $DES/lib/
 cp -R src/lib/regexanalyzer    $DES/lib/
 
 mkdir -p $DES/data
-cp -R ../uAssets/thirdparties/publicsuffix.org/list/* \
+cp -R submodules/uAssets/thirdparties/publicsuffix.org/list/* \
       $DES/data
-cp -R ../uAssets/thirdparties/easylist-downloads.adblockplus.org/* \
+cp -R submodules/uAssets/thirdparties/easylist-downloads.adblockplus.org/* \
       $DES/data
 
 cp platform/browser/*.html $DES/
diff --git a/tools/make-nodejs.sh b/tools/make-nodejs.sh
index 91a4d36e2..186731650 100755
--- a/tools/make-nodejs.sh
+++ b/tools/make-nodejs.sh
@@ -21,15 +21,8 @@ cp -R src/lib/punycode.js      $DES/lib/
 cp -R src/lib/publicsuffixlist $DES/lib/
 cp -R src/lib/regexanalyzer    $DES/lib/
 
-# Use existing uAssets, or git-clone a temporary one
-if [ -d "../uAssets" ]; then
-    UASSETS=../uAssets
-else
-    echo "*** ../uAssets not present, git-cloning..."
-    TMPDIR=$(mktemp -d)
-    UASSETS=$TMPDIR/uAssets
-    git clone --depth=1 https://github.com/uBlockOrigin/uAssets.git $UASSETS
-fi
+git submodule update --depth 1 --init
+UASSETS=submodules/uAssets
 
 # https://github.com/uBlockOrigin/uBlock-issues/issues/1664#issuecomment-888332409
 THIRDPARTY=$UASSETS/thirdparties/publicsuffix.org
@@ -42,12 +35,6 @@ node -pe "JSON.stringify(fs.readFileSync('$THIRDPARTY/easylist.txt', 'utf8'))" \
 node -pe "JSON.stringify(fs.readFileSync('$THIRDPARTY/easyprivacy.txt', 'utf8'))" \
     > $DES/data/easyprivacy.json
 
-# Remove temporary git-clone uAssets
-if [ -n "$TMPDIR" ]; then
-    echo "*** Removing temporary $TMPDIR"
-    rm -rf $TMPDIR
-fi
-
 cp platform/nodejs/*.js   $DES/
 cp platform/nodejs/*.json $DES/
 cp LICENSE.txt            $DES/