diff --git a/tests/kernel/poll/testcase.yaml b/tests/kernel/poll/testcase.yaml
index 35df28f6650..293cb4d8914 100644
--- a/tests/kernel/poll/testcase.yaml
+++ b/tests/kernel/poll/testcase.yaml
@@ -2,4 +2,5 @@ tests:
   kernel.poll:
     tags: kernel userspace
     min_ram: 16
+    min_flash: 34
     platform_exclude: nrf52810_pca10040
diff --git a/tests/kernel/threads/thread_apis/testcase.yaml b/tests/kernel/threads/thread_apis/testcase.yaml
index 3a3ca1e8ee1..70d575bb4c7 100644
--- a/tests/kernel/threads/thread_apis/testcase.yaml
+++ b/tests/kernel/threads/thread_apis/testcase.yaml
@@ -1,3 +1,4 @@
 tests:
   kernel.threads:
     tags: kernel threads userspace ignore_faults
+    min_flash: 34
diff --git a/tests/lib/json/testcase.yaml b/tests/lib/json/testcase.yaml
index 3b48006011e..29bbbb240ea 100644
--- a/tests/lib/json/testcase.yaml
+++ b/tests/lib/json/testcase.yaml
@@ -1,4 +1,5 @@
 tests:
   libraries.encoding:
     filter: not CONFIG_NEWLIB_LIBC
+    min_flash: 34
     tags: json
diff --git a/tests/subsys/jwt/testcase.yaml b/tests/subsys/jwt/testcase.yaml
index 9abe3df1e72..93e28a99d24 100644
--- a/tests/subsys/jwt/testcase.yaml
+++ b/tests/subsys/jwt/testcase.yaml
@@ -1,5 +1,6 @@
 tests:
   libraries.encoding:
     min_ram: 96
+    min_flash: 72
     tags: jwt
-    platform_exclude: esp32 qemu_x86_64 #no newlib
+    platform_exclude: qemu_x86_64 #no newlib