diff --git a/.ci/test_r_package.sh b/.ci/test_r_package.sh
index 57aeb7016633..cf2cf30b4dd4 100755
--- a/.ci/test_r_package.sh
+++ b/.ci/test_r_package.sh
@@ -199,11 +199,8 @@ if grep -q -R "WARNING" "$LOG_FILE_NAME"; then
     exit -1
 fi
 
-if [[ $OS_NAME == "linux" ]] && [[ $R_BUILD_TYPE == "cran" ]]; then
-    ALLOWED_CHECK_NOTES=2
-else
-    ALLOWED_CHECK_NOTES=1
-fi
+ALLOWED_CHECK_NOTES=2
+
 NUM_CHECK_NOTES=$(
     cat ${LOG_FILE_NAME} \
         | grep -e '^Status: .* NOTE.*' \