diff --git a/build_tools/travis/test_docs.sh b/build_tools/travis/test_docs.sh
index 7347f3580a06e..7246165a43767 100755
--- a/build_tools/travis/test_docs.sh
+++ b/build_tools/travis/test_docs.sh
@@ -9,4 +9,6 @@ if [[ "$BUILD_WITH_ICC" == "true" ]]; then
     source /opt/intel/inteloneapi/setvars.sh
 fi
 
-PYTEST="pytest -n $CI_CPU_COUNT" make test-doc
+if [[ "$TRAVIS_CPU_ARCH" != "arm64" ]]; then
+    PYTEST="pytest -n $CI_CPU_COUNT" make test-doc
+fi
diff --git a/build_tools/travis/test_script.sh b/build_tools/travis/test_script.sh
index 3f928a8bdc9c0..f9a3fd4774c36 100755
--- a/build_tools/travis/test_script.sh
+++ b/build_tools/travis/test_script.sh
@@ -40,6 +40,8 @@ run_tests() {
     if [[ "$TRAVIS_CPU_ARCH" == "arm64" ]]; then
         # use pytest-xdist for faster tests
         TEST_CMD="$TEST_CMD -n $CI_CPU_COUNT"
+        # remove option to test docstring
+        sed -i -e 's/--doctest-modules//g' setup.cfg
     else
         # Tests that require large downloads over the networks are skipped in CI.
         # Here we make sure, that they are still run on a regular basis.
diff --git a/doc/tutorial/statistical_inference/supervised_learning.rst b/doc/tutorial/statistical_inference/supervised_learning.rst
index 013100a054648..3d87830fa0b26 100644
--- a/doc/tutorial/statistical_inference/supervised_learning.rst
+++ b/doc/tutorial/statistical_inference/supervised_learning.rst
@@ -417,7 +417,7 @@ the separating line (less regularization).
 
 .. figure:: /auto_examples/svm/images/sphx_glr_plot_svm_margin_001.png
    :target: ../../auto_examples/svm/plot_svm_margin.html
-   
+
    **Unregularized SVM**
 
 .. figure:: /auto_examples/svm/images/sphx_glr_plot_svm_margin_002.png