diff --git a/Makefile b/Makefile
index 9661b0e..15beb99 100644
--- a/Makefile
+++ b/Makefile
@@ -30,7 +30,7 @@ TOOLCHAIN_TAG ?= 0.16.0
 
 DEP_DIR := dep
 
-KERNEL_VERSION ?= 6.5.9-ctsi-2
+KERNEL_VERSION ?= output-unification-test1
 KERNEL_SRCPATH := $(DEP_DIR)/linux-${KERNEL_VERSION}.tar.gz
 
 OPENSBI_VERSION ?= 1.3.1-ctsi-1
@@ -120,7 +120,7 @@ $(DEP_DIR):
 	mkdir dep
 
 $(KERNEL_SRCPATH): | $(DEP_DIR)
-	wget -O $@ https://github.com/cartesi/linux/archive/refs/tags/v$(KERNEL_VERSION).tar.gz
+	@wget -O $@ https://github.com/cartesi/linux/archive/$(KERNEL_VERSION).tar.gz
 
 $(OPENSBI_SRCPATH): | $(DEP_DIR)
 	wget -O $@ https://github.com/cartesi/opensbi/archive/refs/tags/v$(OPENSBI_VERSION).tar.gz
diff --git a/build.mk b/build.mk
index 7a2b3f1..1c52574 100644
--- a/build.mk
+++ b/build.mk
@@ -54,7 +54,7 @@ $(LINUX_DIR)/.config:
 
 cross-deb:  # TARGET == riscv64
 	mkdir -p $(DESTDIR)/DEBIAN
-	cat tools/template/cross-control.template | sed 's|ARG_KERNEL_VERSION|$(KERNEL_VERSION)|g' > $(DESTDIR)/DEBIAN/control
+	cat tools/template/cross-control.template | sed 's|ARG_KERNEL_VERSION|0.0.0|g' > $(DESTDIR)/DEBIAN/control
 	$(MAKE) -rC $(LINUX_DIR) $(LINUX_OPTS) headers_install \
 		INSTALL_HDR_PATH=$(abspath $(DESTDIR))/usr/riscv64-linux-gnu
 	find $(DESTDIR) -exec touch -d "$(KERNEL_TIMESTAMP)" {} \;
@@ -62,7 +62,7 @@ cross-deb:  # TARGET == riscv64
 
 native-deb: # HOST   == riscv64
 	mkdir -p $(DESTDIR)/DEBIAN
-	cat tools/template/native-control.template | sed 's|ARG_KERNEL_VERSION|$(KERNEL_VERSION)|g' > $(DESTDIR)/DEBIAN/control
+	cat tools/template/native-control.template | sed 's|ARG_KERNEL_VERSION|0.0.0|g' > $(DESTDIR)/DEBIAN/control
 	$(MAKE) -rC $(LINUX_DIR) $(LINUX_OPTS) headers_install \
 		INSTALL_HDR_PATH=$(abspath $(DESTDIR))/usr
 	find $(DESTDIR) -exec touch -d "$(KERNEL_TIMESTAMP)" {} \;
diff --git a/shasumfile b/shasumfile
index c879197..5ffb249 100644
--- a/shasumfile
+++ b/shasumfile
@@ -1,2 +1,2 @@
-bfc4d196b90592a2a6bef83ead9e196da6ab6d5978b48ee5e8ccf02913355bc2  dep/linux-6.5.9-ctsi-1.tar.gz
+6d6174f9a432bd8aa5bd84c193761e0782a2d06d41d554e0ab4c07d734cbf8d0  dep/linux-output-unification-test1.tar.gz
 267da33a34a023d9dcff3e7d9a8d58e7caefaff65441e38ff0114e4683dff176  dep/opensbi-1.3.1-ctsi-1.tar.gz