diff --git a/untests/sources/untests_utils/jobber.cpp b/untests/sources/untests_utils/jobber.cpp
index 6bba998b..8748cf73 100644
--- a/untests/sources/untests_utils/jobber.cpp
+++ b/untests/sources/untests_utils/jobber.cpp
@@ -73,10 +73,10 @@ TEST_CASE("jobber") {
         jobber j(1);
         i32 counter = 0;
         j.pause();
-        for ( std::size_t i = 0; i < 10; ++i ) {
+        for ( std::size_t i = 0; i < 50; ++i ) {
             j.async([&counter](){
                 ++counter;
-                std::this_thread::sleep_for(std::chrono::milliseconds(15));
+                std::this_thread::sleep_for(std::chrono::milliseconds(5));
             });
         }
 
@@ -93,10 +93,10 @@ TEST_CASE("jobber") {
         j.active_wait_for(make_milliseconds(60));
         REQUIRE(time::now_ms() - b > make_milliseconds<i64>(70));
         REQUIRE(counter > 2);
-        REQUIRE(counter < 10);
+        REQUIRE(counter < 50);
 
-        j.active_wait_until(time::now_s() + make_seconds<i64>(1));
-        REQUIRE(counter == 10);
+        j.active_wait_until(time::now_s() + make_seconds<i64>(3));
+        REQUIRE(counter == 50);
     }
     {
         jobber j(2);
diff --git a/untests/sources/untests_utils/scheduler.cpp b/untests/sources/untests_utils/scheduler.cpp
index 162b294b..8fb07c9a 100644
--- a/untests/sources/untests_utils/scheduler.cpp
+++ b/untests/sources/untests_utils/scheduler.cpp
@@ -23,10 +23,10 @@ TEST_CASE("scheduler") {
     {
         scheduler s;
         i32 counter = 0;
-        for ( std::size_t i = 0; i < 10; ++i ) {
+        for ( std::size_t i = 0; i < 50; ++i ) {
             s.schedule([&counter](){
                 ++counter;
-                std::this_thread::sleep_for(std::chrono::milliseconds(15));
+                std::this_thread::sleep_for(std::chrono::milliseconds(5));
             });
         }
         s.process_tasks_for(make_milliseconds(-1));
@@ -34,17 +34,17 @@ TEST_CASE("scheduler") {
         REQUIRE(counter == 0);
         s.process_tasks_for(make_milliseconds(60));
         REQUIRE(counter > 2);
-        REQUIRE(counter < 10);
-        s.process_tasks_for(make_seconds(1));
-        REQUIRE(counter == 10);
+        REQUIRE(counter < 50);
+        s.process_tasks_for(make_seconds(3));
+        REQUIRE(counter == 50);
     }
     {
         scheduler s;
         i32 counter = 0;
-        for ( std::size_t i = 0; i < 10; ++i ) {
+        for ( std::size_t i = 0; i < 50; ++i ) {
             s.schedule([&counter](){
                 ++counter;
-                std::this_thread::sleep_for(std::chrono::milliseconds(15));
+                std::this_thread::sleep_for(std::chrono::milliseconds(5));
             });
         }
         s.process_tasks_until(time::now_ms() - make_milliseconds<i64>(1));
@@ -52,9 +52,9 @@ TEST_CASE("scheduler") {
         REQUIRE(counter == 0);
         s.process_tasks_until(time::now_ms() + make_milliseconds<i64>(60));
         REQUIRE(counter > 2);
-        REQUIRE(counter < 10);
-        s.process_tasks_until(time::now_s() + make_seconds<i64>(1));
-        REQUIRE(counter == 10);
+        REQUIRE(counter < 50);
+        s.process_tasks_until(time::now_s() + make_seconds<i64>(3));
+        REQUIRE(counter == 50);
     }
     {
         scheduler s;