diff --git a/.circleci/config.yml b/.circleci/config.yml
index d78feee..38111f6 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,5 +1,14 @@
 version: 2
 jobs:
+  sdist:
+    docker:
+      - image: haskell:8.2.2
+    steps:
+      - checkout
+      - run:
+          name: Build sdist
+          command: make sdist
+
   test:
     docker:
       - image: haskell:8.2.2
@@ -20,8 +29,10 @@ jobs:
           paths:
             - .stack-work
             - /root/.stack
+
 workflows:
   version: 2
   base:
     jobs:
+      - sdist
       - test
diff --git a/Makefile b/Makefile
index 0012009..735722d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,9 @@
+PROJECT_NAME := rollbar-hs
+
 BIN := bin
+CABAL := cabal
+CABAL_FILE := $(PROJECT_NAME).cabal
+DIST := dist
 EMPTY := .make
 GHCID := $(BIN)/ghcid
 STACK := stack
@@ -6,30 +11,55 @@ STACK_WORK := .stack-work
 
 .DEFAULT_GOAL := build
 
+$(BIN):
+	mkdir -p $@
+
+$(DIST):
+	mkdir -p $@
+
 $(EMPTY):
-	mkdir $@
+	mkdir -p $@
 
 $(EMPTY)/stack-setup: | $(EMPTY)
 	$(STACK) setup
 	touch $@
 
-$(GHCID): $(EMPTY)/stack-setup
+$(GHCID): $(EMPTY)/stack-setup | $(BIN)
 	$(STACK) install ghcid --local-bin-path $(BIN)
 
+$(CABAL_FILE):
+	# `stack` has no way to run `hpack` directly.
+	# We can run `hpack` indirectly with little overhead.
+	$(STACK) build --dry-run
+
 .PHONY: build
 build: $(EMPTY)/stack-setup
 	$(STACK) build --no-run-tests --test
 
+.PHONY: cabal-check
+cabal-check: $(CABAL_FILE)
+	$(CABAL) check
+
 .PHONY: clean
 clean:
-	rm -f $(BIN)/*
-	rm -f $(EMPTY)/*
+	rm -f $(CABAL_FILE)
+	rm -fr $(BIN)
+	rm -fr $(DIST)
+	rm -fr $(EMPTY)
 	rm -fr $(STACK_WORK)
 
+.PHONY: sdist
+sdist: cabal-check | $(DIST)
+	$(CABAL) sdist
+
 .PHONY: test
 test: build
 	$(STACK) test
 
+.PHONY: upload-hackage
+upload-hackage: sdist
+	@ $(CABAL) upload $(DIST)/$(PROJECT_NAME)-*.tar.gz
+
 .PHONY: watch
 watch: $(GHCID)
 	$(GHCID)