diff --git a/mainboards/aeeon/upxtreme/Makefile b/mainboards/aeeon/upxtreme/Makefile
index 07c1b7c..c311885 100644
--- a/mainboards/aeeon/upxtreme/Makefile
+++ b/mainboards/aeeon/upxtreme/Makefile
@@ -239,7 +239,7 @@ fetch: getkernel geturoot getfiano getrom
 
 getkernel:
 	rm -rf linux
-	git clone --depth=1 -b working_hack --single-branch https://github.com/linuxboot/linux
+	git clone --depth=1 -b v5.15 --single-branch https://github.com/torvalds/linux
 
 getfiano:
 	go get -u github.com/linuxboot/fiano/cmds/utk
diff --git a/mainboards/bytedance/g220a/Makefile b/mainboards/bytedance/g220a/Makefile
index 3dbd20b..4d86bc1 100644
--- a/mainboards/bytedance/g220a/Makefile
+++ b/mainboards/bytedance/g220a/Makefile
@@ -33,7 +33,7 @@ fetch: getkernel geturoot getfiano
 
 getkernel:
 	rm -rf linux
-	git clone --depth=1 -b working_hack --single-branch https://github.com/linuxboot/linux
+	git clone --depth=1 -b v5.15 --single-branch https://github.com/torvalds/linux
 
 getfiano:
 	go get -u github.com/linuxboot/fiano/cmds/utk
diff --git a/mainboards/digitalloggers/atomicpi/Makefile b/mainboards/digitalloggers/atomicpi/Makefile
index 3d1fc02..87870c8 100644
--- a/mainboards/digitalloggers/atomicpi/Makefile
+++ b/mainboards/digitalloggers/atomicpi/Makefile
@@ -261,7 +261,7 @@ fetch: getkernel geturoot getfiano getrom
 
 getkernel:
 	rm -rf linux
-	git clone --depth=1 -b working_hack --single-branch https://github.com/linuxboot/linux
+	git clone --depth=1 -b v5.15 --single-branch https://github.com/torvalds/linux
 
 getlinux-5.4:
 	rm -rf linux-5.4
diff --git a/mainboards/intel/s2600/Makefile b/mainboards/intel/s2600/Makefile
index 97db5ff..46c0b9d 100644
--- a/mainboards/intel/s2600/Makefile
+++ b/mainboards/intel/s2600/Makefile
@@ -211,7 +211,7 @@ fetch: getkernel geturoot getfiano getrom
 
 getkernel:
 	rm -rf linux
-	git clone --depth=1 -b working_hack --single-branch https://github.com/linuxboot/linux
+	git clone --depth=1 -b v5.15 --single-branch https://github.com/torvalds/linux
 
 getfiano:
 	go get -u github.com/linuxboot/fiano/cmds/utk
diff --git a/mainboards/lenovo/sr630/Makefile b/mainboards/lenovo/sr630/Makefile
index b3c0d14..84011c3 100644
--- a/mainboards/lenovo/sr630/Makefile
+++ b/mainboards/lenovo/sr630/Makefile
@@ -57,9 +57,7 @@ bzImage:
 fetch: getkernel geturoot getfiano getrom
 getkernel:
 	rm -rf linux
-	wget -O kernel.xz https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.14.111.tar.xz
-	xzcat kernel.xz | tar x
-	mv linux-4.14.111 linux
+	git clone --depth=1 -b v5.15 --single-branch https://github.com/torvalds/linux
 getfiano:
 	go get -u github.com/linuxboot/fiano/cmds/utk
 	go install github.com/linuxboot/fiano/cmds/utk