diff --git a/Makefile b/Makefile
index e5e5be5d2..72fd7cd02 100644
--- a/Makefile
+++ b/Makefile
@@ -17,10 +17,12 @@ NAME = Talos
 CLOUD_IMAGES_EXTRA_ARGS ?= ""
 ZSTD_COMPRESSION_LEVEL ?= 18
 
-CI_RELEASE_TAG := $(shell git log --oneline --format=%B -n 1 HEAD^2 -- 2>/dev/null | head -n 1 | sed -r "/^release\(.*\)/ s/^release\((.*)\):.*$/\1/; t; Q")
+CI_RELEASE_TAG := $(shell git log --oneline --format=%B -n 1 HEAD^2 -- 2>/dev/null | head -n 1 | $(SED) -r "/^release\(.*\)/ s/^release\((.*)\):.*$/\1/; t; Q")
 
 ARTIFACTS := _out
 
+SED ?= sed
+
 DEBUG_TOOLS_SOURCE := scratch
 EMBED_TARGET ?= embed
 
@@ -122,7 +124,7 @@ TEXTLINT_RULE_ONE_SENTENCE_PER_LINE_VERSION ?= 2.0.0
 # renovate: datasource=docker depName=hugomods/hugo
 HUGO_VERSION ?= dart-sass-0.145.0
 OPERATING_SYSTEM := $(shell uname -s | tr "[:upper:]" "[:lower:]")
-ARCH := $(shell uname -m | sed 's/x86_64/amd64/' | sed 's/aarch64/arm64/')
+ARCH := $(shell uname -m | $(SED) 's/x86_64/amd64/' | $(SED) 's/aarch64/arm64/')
 TALOSCTL_DEFAULT_TARGET := talosctl-$(OPERATING_SYSTEM)
 TALOSCTL_EXECUTABLE := $(PWD)/$(ARTIFACTS)/$(TALOSCTL_DEFAULT_TARGET)-$(ARCH)
 INTEGRATION_TEST := integration-test
@@ -371,7 +373,7 @@ docker-%: ## Builds the specified target defined in the Dockerfile using the doc
 	@$(MAKE) target-$* TARGET_ARGS="--output type=docker,dest=$(DEST)/$*.tar,name=$(REGISTRY_AND_USERNAME)/$*:$(IMAGE_TAG_OUT) $(TARGET_ARGS)"
 
 registry-%: ## Builds the specified target defined in the Dockerfile using the image/registry output type. The build result will be pushed to the registry if PUSH=true.
-	@$(MAKE) target-$* TARGET_ARGS="--output type=image,name=$(REGISTRY_AND_USERNAME)/$*:$(IMAGE_TAG_OUT),rewrite-timestamp=true $(TARGET_ARGS)"
+	@$(MAKE) target-$* TARGET_ARGS="--output type=image,name=$(REGISTRY_AND_USERNAME)/$*:$(IMAGE_TAG_OUT),rewrite-timestamp=false $(TARGET_ARGS)"
 
 hack-test-%: ## Runs the specified script in ./hack/test with well known environment variables.
 	@./hack/test/$*.sh
@@ -739,7 +741,7 @@ reproducibility-test-docker-%: $(ARTIFACTS)
 	@mkdir -p _out1/ _out2/
 	@$(MAKE) docker-$* DEST=_out1/
 	@$(MAKE) docker-$* DEST=_out2/ TARGET_ARGS="--no-cache"
-	@find _out1/ -type f | xargs -IFILE diffoscope FILE `echo FILE | sed 's/_out1/_out2/'`
+	@find _out1/ -type f | xargs -IFILE diffoscope FILE `echo FILE | $(SED) 's/_out1/_out2/'`
 	@rm -rf _out1/ _out2/
 
 reproducibility-test-local-%: $(ARTIFACTS)
@@ -747,7 +749,7 @@ reproducibility-test-local-%: $(ARTIFACTS)
 	@mkdir -p _out1/ _out2/
 	@$(MAKE) local-$* DEST=_out1/
 	@$(MAKE) local-$* DEST=_out2/ TARGET_ARGS="--no-cache"
-	@find _out1/ -type f | xargs -IFILE diffoscope FILE `echo FILE | sed 's/_out1/_out2/'`
+	@find _out1/ -type f | xargs -IFILE diffoscope FILE `echo FILE | $(SED) 's/_out1/_out2/'`
 	@rm -rf _out1/ _out2/
 
 reproducibility-test-iso: $(ARTIFACTS)