diff --git a/Makefile b/Makefile
index 777ffb51..c0c850fc 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,8 @@
 PACKAGE_NAME = osbuild
-VERSION = $$(python3 setup.py --version)
+VERSION := $(shell python3 setup.py --version)
+NEXT_VERSION := $(shell expr "$(VERSION)" + 1)
 
-.PHONY: sdist tarball srpm rpm copy-rpms-to-test check-working-directory vagrant-test vagrant-test-keep-running
+.PHONY: sdist tarball srpm rpm copy-rpms-to-test check-working-directory vagrant-test vagrant-test-keep-running bump-version
 
 sdist:
 	python3 setup.py sdist
@@ -51,3 +52,8 @@ vagrant-test-keep-running: check-working-directory copy-rpms-to-test
 	- $(MAKE) -C test up
 	- $(MAKE) -C test install-deps
 	$(MAKE) -C test run-tests-remotely
+
+bump-version:
+	sed -i "s|Version:\s*$(VERSION)|Version:\\t$(NEXT_VERSION)|" osbuild.spec
+	sed -i "s|Release:\s*[[:digit:]]\+|Release:\\t1|" osbuild.spec
+	sed -i "s|version=\"$(VERSION)\"|version=\"$(NEXT_VERSION)\"|" setup.py
diff --git a/bump-version.sh b/bump-version.sh
deleted file mode 100755
index e74462db..00000000
--- a/bump-version.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/bash
-
-current_version=$(python3 setup.py --version)
-new_version=$(expr "${current_version}" + 1)
-
-sed -i "s|Version:\s*${current_version}|Version:\\t${new_version}|" osbuild.spec
-sed -i "s|Release:\s*[[:digit:]]\+|Release:\\t1|" osbuild.spec
-sed -i "s|version=\"${current_version}\"|version=\"${new_version}\"|" setup.py