diff --git a/.github/workflows/c-zephyr-tests.yml b/.github/workflows/c-zephyr-tests.yml
index 2a69452506..85ad929d95 100644
--- a/.github/workflows/c-zephyr-tests.yml
+++ b/.github/workflows/c-zephyr-tests.yml
@@ -46,16 +46,16 @@ jobs:
             --tests org.lflang.tests.runtime.CZephyrTest.buildZephyrThreaded* core:integrationTestCodeCoverageReport
           ./.github/scripts/run-zephyr-tests.sh test/C/src-gen
           rm -rf test/C/src-gen
-      - name: Run basic tests
-        run: |
-          ./gradlew core:integrationTest --tests org.lflang.tests.runtime.CZephyrTest.buildBasic* core:integrationTestCodeCoverageReport
-          ./.github/scripts/run-zephyr-tests.sh test/C/src-gen
-          rm -rf test/C/src-gen
-      - name: Run concurrent tests
-        run: |
-          ./gradlew core:integrationTest --tests org.lflang.tests.runtime.CZephyrTest.buildConcurrent* core:integrationTestCodeCoverageReport
-          ./.github/scripts/run-zephyr-tests.sh test/C/src-gen
-          rm -rf test/C/src-gen
+      # - name: Run basic tests
+      #   run: |
+      #     ./gradlew core:integrationTest --tests org.lflang.tests.runtime.CZephyrTest.buildBasic* core:integrationTestCodeCoverageReport
+      #     ./.github/scripts/run-zephyr-tests.sh test/C/src-gen
+      #     rm -rf test/C/src-gen
+      # - name: Run concurrent tests
+      #   run: |
+      #     ./gradlew core:integrationTest --tests org.lflang.tests.runtime.CZephyrTest.buildConcurrent* core:integrationTestCodeCoverageReport
+      #     ./.github/scripts/run-zephyr-tests.sh test/C/src-gen
+      #     rm -rf test/C/src-gen
       - name: Run Zephyr board tests
         run: |
           ./gradlew core:integrationTest --tests org.lflang.tests.runtime.CZephyrTest.buildZephyrBoards* core:integrationTestCodeCoverageReport