diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..d0d0f50
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,8 @@
+version: 2
+updates:
+  # Update specifications' submodules
+  # https://docs.github.com/en/code-security/dependabot/working-with-dependabot/dependabot-options-reference
+  - package-ecosystem: "submodules"
+    directory: "/"
+    schedule:
+      interval: "weekly"
diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index ff35dd3..0a0289f 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -17,6 +17,7 @@ jobs:
     steps:
     - uses: actions/checkout@v5
       with:
+        submodules: recursive
         persist-credentials: false
     - uses: actions/setup-python@v6
       with:
@@ -48,6 +49,7 @@ jobs:
     steps:
     - uses: actions/checkout@v5
       with:
+        submodules: recursive
         persist-credentials: false
     - name: Use Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
@@ -61,16 +63,10 @@ jobs:
     - name: Install testing dependencies
       run: |
         pip install -r requirements-test.txt
-    - name: Fetch test suites
-      run: |
-        git clone --depth 1 https://github.com/w3c/json-ld-api.git _json-ld-api
-        git clone --depth 1 https://github.com/w3c/json-ld-framing.git _json-ld-framing
-        git clone --depth 1 https://github.com/json-ld/normalization.git _normalization
     - name: Test with Python=${{ matrix.python-version }} Loader=${{ matrix.loader }}
       run: |
-        python tests/runtests.py ./_json-ld-api/tests -l ${{ matrix.loader }}
-        python tests/runtests.py ./_json-ld-framing/tests -l ${{ matrix.loader }}
-        python tests/runtests.py ./_normalization/tests -l ${{ matrix.loader }}
+        python tests/runtests.py ./specifications/json-ld-api/tests -l ${{ matrix.loader }}
+        python tests/runtests.py ./specifications/json-ld-framing/tests -l ${{ matrix.loader }}
       env:
         LOADER: ${{ matrix.loader }}
   #coverage:
diff --git a/.gitignore b/.gitignore
index 022ac42..60a6351 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,6 @@ lib/PyLD.egg-info
 profiler
 tests/test_caching.py
 tests/data/test_caching.json
+
+# Local version file for pyenv
+.python-version
diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..29eae86
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "specifications/json-ld-api"]
+	path = specifications/json-ld-api
+	url = https://github.com/w3c/json-ld-api.git
+[submodule "specifications/json-ld-framing"]
+	path = specifications/json-ld-framing
+	url = https://github.com/w3c/json-ld-framing.git
diff --git a/specifications/json-ld-api b/specifications/json-ld-api
new file mode 160000
index 0000000..590f78d
--- /dev/null
+++ b/specifications/json-ld-api
@@ -0,0 +1 @@
+Subproject commit 590f78d171c45898ddaf6f8bd660a0567f4c7e5c
diff --git a/specifications/json-ld-framing b/specifications/json-ld-framing
new file mode 160000
index 0000000..fa22874
--- /dev/null
+++ b/specifications/json-ld-framing
@@ -0,0 +1 @@
+Subproject commit fa228743e890499c35bc61aabf01e44cf5bbc3bc