diff --git a/.circleci/config.yml b/.circleci/config.yml
index c347a064f..d40fd467f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -19,68 +19,71 @@ jobs:
           name: Generate YAML tests
           command: make gen_yaml_tests
 
-      - store_artifacts:
-          path: test-reports
-          destination: test-reports
-
-      - run:
-          name: Save YAML tests for deployment
-          command: |
-            mkdir /tmp/workspace
-            cp -r yaml_tests /tmp/workspace/
-            git log -1 >> /tmp/workspace/latest_commit_message
-      - persist_to_workspace:
-          root: /tmp/workspace
-          paths:
-            - yaml_tests
-            - latest_commit_message
-  commit:
-    docker:
-      - image: circleci/python:3.6
-    steps:
-      - attach_workspace:
-          at: /tmp/workspace
-      - add_ssh_keys:
-          fingerprints:
-            - "01:85:b6:36:96:a6:84:72:e4:9b:4e:38:ee:21:97:fa"
-      - run:
-          name: Checkout test repository
-          command: |
-            ssh-keyscan -H github.com >> ~/.ssh/known_hosts
-            git clone git@github.com:ethereum/eth2.0-tests.git
-      - run:
-          name: Commit and push generated YAML tests
-          command: |
-            cd eth2.0-tests
-            git config user.name 'eth2TestGenBot'
-            git config user.email '47188154+eth2TestGenBot@users.noreply.github.com'
-            for filename in /tmp/workspace/yaml_tests/*; do
-              rm -rf $(basename $filename)
-              cp -r $filename .
-            done
-            git add .
-            if git diff --cached --exit-code >& /dev/null; then
-              echo "No changes to commit"
-            else
-              echo -e "Update generated tests\n\nLatest commit message from eth2.0-specs:\n" > commit_message
-              cat /tmp/workspace/latest_commit_message >> commit_message
-              git commit -F commit_message
-              git push origin master
-            fi
-workflows:
-  version: 2.1
-
-  build_and_commit:
-    jobs:
-      - build:
-          filters:
-            tags:
-              only: /.*/
-      - commit:
-          requires:
-            - build
-          filters:
-            tags:
-              only: /.*/
-            branches:
-              ignore: /.*/
\ No newline at end of file
+# TODO in future PR (after #851): decide on CI triggering of yaml tests building,
+#  and destination of output (new yaml tests LFS-configured repository)
+#
+#      - store_artifacts:
+#          path: test-reports
+#          destination: test-reports
+#
+#      - run:
+#          name: Save YAML tests for deployment
+#          command: |
+#            mkdir /tmp/workspace
+#            cp -r yaml_tests /tmp/workspace/
+#            git log -1 >> /tmp/workspace/latest_commit_message
+#      - persist_to_workspace:
+#          root: /tmp/workspace
+#          paths:
+#            - yaml_tests
+#            - latest_commit_message
+#  commit:
+#    docker:
+#      - image: circleci/python:3.6
+#    steps:
+#      - attach_workspace:
+#          at: /tmp/workspace
+#      - add_ssh_keys:
+#          fingerprints:
+#            - "01:85:b6:36:96:a6:84:72:e4:9b:4e:38:ee:21:97:fa"
+#      - run:
+#          name: Checkout test repository
+#          command: |
+#            ssh-keyscan -H github.com >> ~/.ssh/known_hosts
+#            git clone git@github.com:ethereum/eth2.0-tests.git
+#      - run:
+#          name: Commit and push generated YAML tests
+#          command: |
+#            cd eth2.0-tests
+#            git config user.name 'eth2TestGenBot'
+#            git config user.email '47188154+eth2TestGenBot@users.noreply.github.com'
+#            for filename in /tmp/workspace/yaml_tests/*; do
+#              rm -rf $(basename $filename)
+#              cp -r $filename .
+#            done
+#            git add .
+#            if git diff --cached --exit-code >& /dev/null; then
+#              echo "No changes to commit"
+#            else
+#              echo -e "Update generated tests\n\nLatest commit message from eth2.0-specs:\n" > commit_message
+#              cat /tmp/workspace/latest_commit_message >> commit_message
+#              git commit -F commit_message
+#              git push origin master
+#            fi
+#workflows:
+#  version: 2.1
+#
+#  build_and_commit:
+#    jobs:
+#      - build:
+#          filters:
+#            tags:
+#              only: /.*/
+#      - commit:
+#          requires:
+#            - build
+#          filters:
+#            tags:
+#              only: /.*/
+#            branches:
+#              ignore: /.*/
\ No newline at end of file