diff --git a/tools/ci/config/target-test.yml b/tools/ci/config/target-test.yml
index 65708f7dd0..c1a3673a56 100644
--- a/tools/ci/config/target-test.yml
+++ b/tools/ci/config/target-test.yml
@@ -460,7 +460,7 @@ UT_034:
 
 UT_035:
   extends: .unit_test_template
-  parallel: 38
+  parallel: 17
   tags:
     - ESP32S2BETA_IDF
     - UT_T1_1