diff --git a/misc/requirements.txt b/misc/requirements.txt
index fa056873..16e08f02 100644
--- a/misc/requirements.txt
+++ b/misc/requirements.txt
@@ -1,7 +1,7 @@
-avocado-framework==82.0
-avocado-framework-plugin-loader-yaml==82.0
-avocado-framework-plugin-result-html==82.0
-avocado-framework-plugin-varianter-yaml-to-mux==82.0
+avocado-framework==91.0
+avocado-framework-plugin-loader-yaml==91.0
+avocado-framework-plugin-result-html==91.0
+avocado-framework-plugin-varianter-yaml-to-mux==91.0
 Jinja2==2.11.3
 MarkupSafe==1.1.1
 PyYAML==5.4
diff --git a/testsuite/multiprocessing_unitary_tests/Makefile b/testsuite/multiprocessing_unitary_tests/Makefile
index 129d339f..bb74b46c 100644
--- a/testsuite/multiprocessing_unitary_tests/Makefile
+++ b/testsuite/multiprocessing_unitary_tests/Makefile
@@ -1,4 +1,4 @@
 POK_PATH := $(CURDIR)/../..
 
 check::
-	avocado run  --xunit report.xml --mux-yaml testconfig.yaml -- $(POK_PATH)/misc/execution_test_multiprocessing.py
+	avocado run --nrunner-max-parallel-tasks 1  --xunit report.xml --mux-yaml testconfig.yaml -- $(POK_PATH)/misc/execution_test_multiprocessing.py
diff --git a/testsuite/unitary_tests/Makefile b/testsuite/unitary_tests/Makefile
index b62df427..18005da9 100644
--- a/testsuite/unitary_tests/Makefile
+++ b/testsuite/unitary_tests/Makefile
@@ -1,4 +1,4 @@
 POK_PATH := $(CURDIR)/../..
 
 check::
-	avocado run  --xunit report.xml --mux-yaml testconfig.yaml -- $(POK_PATH)/misc/execution_test.py
+	avocado run --nrunner-max-parallel-tasks 1  --xunit report.xml --mux-yaml testconfig.yaml -- $(POK_PATH)/misc/execution_test.py