diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index e816e1c..de197b7 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -92,6 +92,14 @@ jobs:
           LD_LIBRARY_PATH="$(pwd)/lib:$LD_LIBRARY_PATH"
           echo "LD_LIBRARY_PATH=$LD_LIBRARY_PATH" >> $GITHUB_ENV
           make build-validate
+      - name: Cache gocr
+        uses: actions/cache@v2
+        env:
+          cache-name: gocr
+        with:
+          # Cache the gocr webassembly module based on the submodule file
+          path: ./runtime/bin/gocr_wasm.so
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles(./runtime/tests/gocr') }}
       - name: Compile sample apps and run tests
         run: |
           ./test.sh
diff --git a/test.sh b/test.sh
index a3f9d79..d6a89a2 100755
--- a/test.sh
+++ b/test.sh
@@ -32,7 +32,9 @@ declare -a failed_tests=()
 # OCR Tests
 # FIXME: OCR tests seem to sporadically fail and then work on rerun.
 ocr_hyde() {
-	make gocr -C "$base_dir/runtime/tests" || exit 1
+	if [[ ! -f "$base_dir/runtime/bin/gocr_wasm.so" ]]; then
+		make gocr -C "$base_dir/runtime/tests" || exit 1
+	fi
 	pushd "$base_dir/runtime/experiments/applications/ocr/hyde" || exit 1
 	./run.sh || failed_tests+=("ocr_hyde")
 	popd || exit 1
@@ -40,7 +42,9 @@ ocr_hyde() {
 }
 
 ocr_handwriting() {
-	make gocr -C "$base_dir/runtime/tests" || exit 1
+	if [[ ! -f "$base_dir/runtime/bin/gocr_wasm.so" ]]; then
+		make gocr -C "$base_dir/runtime/tests" || exit 1
+	fi
 	pushd "$base_dir/runtime/experiments/applications/ocr/handwriting" || exit 1
 	./run.sh || failed_tests+=("ocr_handwriting")
 	popd || exit 1
@@ -48,7 +52,9 @@ ocr_handwriting() {
 }
 
 ocr_fivebyeight() {
-	make gocr -C "$base_dir/runtime/tests" || exit 1
+	if [[ ! -f "$base_dir/runtime/bin/gocr_wasm.so" ]]; then
+		make gocr -C "$base_dir/runtime/tests" || exit 1
+	fi
 	pushd "$base_dir/runtime/experiments/applications/ocr/fivebyeight" || exit 1
 	./run.sh || failed_tests+=("ocr_fivebyeight")
 	popd || exit 1
@@ -56,7 +62,9 @@ ocr_fivebyeight() {
 }
 
 ocr_by_word() {
-	make gocr -C "$base_dir/runtime/tests" || exit 1
+	if [[ ! -f "$base_dir/runtime/bin/gocr_wasm.so" ]]; then
+		make gocr -C "$base_dir/runtime/tests" || exit 1
+	fi
 	pushd "$base_dir/runtime/experiments/applications/ocr/by_word" || exit 1
 	./install.sh || exit 1
 	./run.sh || failed_tests+=("ocr_by_word")
@@ -65,7 +73,9 @@ ocr_by_word() {
 }
 
 ocr_by_font() {
-	make gocr -C "$base_dir/runtime/tests" || exit 1
+	if [[ ! -f "$base_dir/runtime/bin/gocr_wasm.so" ]]; then
+		make gocr -C "$base_dir/runtime/tests" || exit 1
+	fi
 	pushd "$base_dir/runtime/experiments/applications/ocr/by_font" || exit 1
 	./install.sh || exit 1
 	./run.sh || failed_tests+=("ocr_by_font")
@@ -74,7 +84,9 @@ ocr_by_font() {
 }
 
 ocr_by_dpi() {
-	make gocr -C "$base_dir/runtime/tests" || exit 1
+	if [[ ! -f "$base_dir/runtime/bin/gocr_wasm.so" ]]; then
+		make gocr -C "$base_dir/runtime/tests" || exit 1
+	fi
 	pushd "$base_dir/runtime/experiments/applications/ocr/by_dpi" || exit 1
 	./install.sh || exit 1
 	./run.sh || failed_tests+=("ocr_by_dpi")