diff --git a/Makefile b/Makefile
index 5414665..14e0343 100644
--- a/Makefile
+++ b/Makefile
@@ -7,6 +7,18 @@ INIT_FILE := leverage/__init__.py
 RELEASE_VERSION ?= $(shell curl -sL "https://test.pypi.org/pypi/leverage/json" | jq -r ".releases | keys | sort | .[-1]" | awk 'BEGIN{FS="."; OFS="."} {print $$1,$$2,$$3+1}' )rc.1
 PLACEHOLDER := 0.0.0
 
+# Determine which sed to use: gsed if available on macOS, otherwise sed
+UNAME_S := $(shell uname -s)
+SED := sed
+ifeq ($(UNAME_S),Darwin)
+    GSED_AVAILABLE := $(shell command -v gsed 2> /dev/null)
+    ifneq ($(GSED_AVAILABLE),)
+        SED := gsed
+    else
+        $(error gsed is not installed. Please install using 'brew install gnu-sed')
+    endif
+endif
+
 help:
 	@echo 'Available Commands:'
 	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | sort | awk 'BEGIN {FS = ":.*?## "}; {printf " - \033[36m%-18s\033[0m %s\n", $$1, $$2}'
@@ -54,12 +66,12 @@ bump-test-version: ## Bump version based on TestPyPI or provided input
 	@echo "[INFO] Get latest version from TestPypi."
 	$(eval LATEST_VERSION=$(shell curl -sL "https://test.pypi.org/pypi/leverage/json" | jq -r ".releases | keys | sort | .[-1]"))
 	@echo "[INFO] Latest version: $(LATEST_VERSION)"
-	$(eval RELEASE_VERSION=$(shell echo $(LATEST_VERSION) | awk 'BEGIN{FS="."; OFS="."} {print $$1,$$2,$$3+1}')rc.1)
+	$(eval RELEASE_VERSION=$(shell echo $(LATEST_VERSION) | awk 'BEGIN{FS="."; OFS="."} {print $$1,$$2,$$3+1}')rc1)
 	@echo "[INFO] Checking Release Version (template 9.9.9-rc9)..."
 	@echo $(RELEASE_VERSION) | awk '/[0-9]+\.[0-9]+\.[0-9]+-(rc|alpha|beta)[0-9]+/ {print "[INFO] Version ok"}' || (echo "[ERROR] Version is wrong" && exit 1)
 	@echo "[INFO] Bump version to $(RELEASE_VERSION)"
-	@sed -i '' 's/__version__ = "$(CURRENT_VERSION)"/__version__ = "$(RELEASE_VERSION)"/' $(INIT_FILE)
-	@sed -i '' 's/version = "$(CURRENT_VERSION)"/version = "$(RELEASE_VERSION)"/' $(PYPROJECT_FILE)
+	@$(SED) -i 's/__version__ = "$(CURRENT_VERSION)"/__version__ = "$(RELEASE_VERSION)"/' $(INIT_FILE)
+	@$(SED) -i 's/version = "$(CURRENT_VERSION)"/version = "$(RELEASE_VERSION)"/' $(PYPROJECT_FILE)
 
 bump-version-ci: ## Fetch latest tag, update versions in __init__.py and pyproject.toml
 	@echo "[INFO] Get latest tag"
@@ -67,7 +79,7 @@ bump-version-ci: ## Fetch latest tag, update versions in __init__.py and pyproje
 	@echo $(RELEASE_VERSION)
 
 	@echo "[INFO] Write version to __init__.py"
-	@sed -i '' 's/$(PLACEHOLDER)/$(RELEASE_VERSION)/' $(INIT_FILE)
+	@$(SED) -i 's/$(PLACEHOLDER)/$(RELEASE_VERSION)/' $(INIT_FILE)
 
 	@echo "[INFO] Update version in pyproject.toml"
-	@sed -i '' 's/version = ".*"/version = "$(RELEASE_VERSION)"/' $(PYPROJECT_FILE)
+	@$(SED) -i 's/version = ".*"/version = "$(RELEASE_VERSION)"/' $(PYPROJECT_FILE)