diff --git a/test/cases/020_kernel/015_config_5.12.x/test.sh b/test/cases/020_kernel/016_config_5.15.x/test.sh
similarity index 100%
rename from test/cases/020_kernel/015_config_5.12.x/test.sh
rename to test/cases/020_kernel/016_config_5.15.x/test.sh
diff --git a/test/cases/020_kernel/015_config_5.12.x/test.yml b/test/cases/020_kernel/016_config_5.15.x/test.yml
similarity index 92%
rename from test/cases/020_kernel/015_config_5.12.x/test.yml
rename to test/cases/020_kernel/016_config_5.15.x/test.yml
index e66b533b8..7c47bb16c 100644
--- a/test/cases/020_kernel/015_config_5.12.x/test.yml
+++ b/test/cases/020_kernel/016_config_5.15.x/test.yml
@@ -1,5 +1,5 @@
 kernel:
-  image: linuxkit/kernel:5.12.14
+  image: linuxkit/kernel:5.15.15
   cmdline: "console=ttyS0 console=ttyAMA0"
 init:
   - linuxkit/init:7e3d51e6ab5896ecb36a4829450f7430f2878927
diff --git a/test/cases/020_kernel/115_kmod_5.12.x/Dockerfile b/test/cases/020_kernel/116_kmod_5.15.x/Dockerfile
similarity index 86%
rename from test/cases/020_kernel/115_kmod_5.12.x/Dockerfile
rename to test/cases/020_kernel/116_kmod_5.15.x/Dockerfile
index 5510e53d3..94950b476 100644
--- a/test/cases/020_kernel/115_kmod_5.12.x/Dockerfile
+++ b/test/cases/020_kernel/116_kmod_5.15.x/Dockerfile
@@ -3,10 +3,10 @@
 # In the last stage, it creates a package, which can be used for
 # testing.
 
-FROM linuxkit/kernel:5.12.14 AS ksrc
+FROM linuxkit/kernel:5.15.15 AS ksrc
 
 # Extract headers and compile module
-FROM linuxkit/kernel:5.12.14-builder AS build
+FROM linuxkit/kernel:5.15.15-builder AS build
 RUN apk add build-base elfutils-dev
 
 COPY --from=ksrc /kernel-dev.tar /
diff --git a/test/cases/020_kernel/115_kmod_5.12.x/check.sh b/test/cases/020_kernel/116_kmod_5.15.x/check.sh
similarity index 100%
rename from test/cases/020_kernel/115_kmod_5.12.x/check.sh
rename to test/cases/020_kernel/116_kmod_5.15.x/check.sh
diff --git a/test/cases/020_kernel/115_kmod_5.12.x/src/Makefile b/test/cases/020_kernel/116_kmod_5.15.x/src/Makefile
similarity index 100%
rename from test/cases/020_kernel/115_kmod_5.12.x/src/Makefile
rename to test/cases/020_kernel/116_kmod_5.15.x/src/Makefile
diff --git a/test/cases/020_kernel/115_kmod_5.12.x/src/hello_world.c b/test/cases/020_kernel/116_kmod_5.15.x/src/hello_world.c
similarity index 100%
rename from test/cases/020_kernel/115_kmod_5.12.x/src/hello_world.c
rename to test/cases/020_kernel/116_kmod_5.15.x/src/hello_world.c
diff --git a/test/cases/020_kernel/115_kmod_5.12.x/test.sh b/test/cases/020_kernel/116_kmod_5.15.x/test.sh
similarity index 100%
rename from test/cases/020_kernel/115_kmod_5.12.x/test.sh
rename to test/cases/020_kernel/116_kmod_5.15.x/test.sh
diff --git a/test/cases/020_kernel/115_kmod_5.12.x/test.yml b/test/cases/020_kernel/116_kmod_5.15.x/test.yml
similarity index 93%
rename from test/cases/020_kernel/115_kmod_5.12.x/test.yml
rename to test/cases/020_kernel/116_kmod_5.15.x/test.yml
index 0f76b223f..aef2a8fcb 100644
--- a/test/cases/020_kernel/115_kmod_5.12.x/test.yml
+++ b/test/cases/020_kernel/116_kmod_5.15.x/test.yml
@@ -1,5 +1,5 @@
 kernel:
-  image: linuxkit/kernel:5.12.14
+  image: linuxkit/kernel:5.15.15
   cmdline: "console=ttyS0 console=ttyAMA0"
 init:
   - linuxkit/init:7e3d51e6ab5896ecb36a4829450f7430f2878927
diff --git a/test/cases/020_kernel/215_tags_5.12.x/test.sh b/test/cases/020_kernel/216_tags_5.15.x/test.sh
similarity index 100%
rename from test/cases/020_kernel/215_tags_5.12.x/test.sh
rename to test/cases/020_kernel/216_tags_5.15.x/test.sh