diff --git a/.github/workflows/validate.yaml b/.github/workflows/validate.yaml
new file mode 100644
index 0000000..ee0f97e
--- /dev/null
+++ b/.github/workflows/validate.yaml
@@ -0,0 +1,25 @@
+name: JATS validation
+
+on:
+  push:
+    paths:
+      - 'test/expected-paper.jats/paper.jats'
+  pull_request:
+    paths:
+      - 'test/expected-paper.jats/paper.jats'
+
+jobs:
+  build:
+    name: Verify expected JATS
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install XML validator
+        run: |
+          sudo apt install libxml2-utils
+
+      - name: Test image
+        run: |
+          make validate-jats
diff --git a/.gitignore b/.gitignore
index e0124dc..b34a412 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,9 @@
 /example/paper.jats
 /example/paper.crossref
 /example/paper.preprint.tex
+
+# JATS schema files
+/test/JATS-Publishing-1-2-MathML2-XSD.zip
+/test/JATS-journalpublishing1-elements.xsd
+/test/JATS-journalpublishing1.xsd
+/test/standard-modules
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 3138103..e69371d 100644
--- a/Makefile
+++ b/Makefile
@@ -69,18 +69,23 @@ clean:
 	rm -rf $(TARGET_FOLDER)/paper.pdf
 	rm -rf $(TARGET_FOLDER)/paper.preprint
 	rm -rf $(TARGET_FOLDER)/paper.preprint.tex
+	rm -rf test/JATS-Publishing-1-2-MathML2-XSD.zip
+	rm -rf test/JATS-journalpublishing1-elements.xsd
+	rm -rf test/JATS-journalpublishing1.xsd
+	rm -rf test/standard-modules
+	rm -rf /tmp/JATS-Publishing-1-2-MathML2-XSD
 
 
 ## Tests
 
 # Command used to invoke Inara. Sets an environment variable that makes the
 # program ignore the real date.
-INARA_TEST_CMD = docker run --rm -it \
+INARA_TEST_CMD = docker run --rm \
 	--env SOURCE_DATE_EPOCH=1234567890 \
 	-v $${PWD}:/data openjournals/inara:latest
 
-.PHONY: test golden-tests test-jats test-%
-test: golden-tests
+.PHONY: test test-golden test-jats test-%
+test: test-golden
 
 test-golden: test-crossref test-jats test-pdf test-preprint
 
@@ -91,3 +96,18 @@ test-%:
 	$(INARA_TEST_CMD) -o $* example/paper.md
 	diff example/$(GOLDEN_FILE) test/expected-$(GOLDEN_FILE)
 
+NCBI_FTP = "ftp://ftp.ncbi.nih.gov/pub/jats/publishing/1.2/xsd/"
+test/JATS-Publishing-1-2-MathML2-XSD.zip:
+	curl --output $@ \
+	  "$(NCBI_FTP)/JATS-Publishing-1-2-MathML2-XSD.zip"
+
+test/JATS-journalpublishing1.xsd: \
+		test/JATS-Publishing-1-2-MathML2-XSD.zip
+	unzip -q -d /tmp $<
+	cp -a /tmp/JATS-Publishing-1-2-MathML2-XSD/* test
+	rm -rf /tmp/JATS-Publishing-1-2-MathML2-XSD
+
+.PHONY: validate-jats
+validate-jats: test/expected-paper.jats/paper.jats \
+		test/JATS-journalpublishing1.xsd
+	xmllint --schema test/JATS-journalpublishing1.xsd $< --noout