diff --git a/Makefile b/Makefile
index 2f9c6dd47..93a5120dd 100644
--- a/Makefile
+++ b/Makefile
@@ -6,6 +6,7 @@ GOTOOLS = \
 GOBIN?=${GOPATH}/bin
 PACKAGES=$(shell go list ./...)
 OUTPUT?=build/tendermint
+GO111MODULE=on
 
 INCLUDE = -I=. -I=${GOPATH}/src -I=${GOPATH}/src/github.com/gogo/protobuf/protobuf
 BUILD_TAGS?='tendermint'
@@ -19,19 +20,19 @@ check: check_tools
 ### Build Tendermint
 
 build:
-	CGO_ENABLED=0 go build $(BUILD_FLAGS) -tags $(BUILD_TAGS) -o $(OUTPUT) ./cmd/tendermint/
+	CGO_ENABLED=0 go build -mod=readonly $(BUILD_FLAGS) -tags $(BUILD_TAGS) -o $(OUTPUT) ./cmd/tendermint/
 
 build_c:
-	CGO_ENABLED=1 go build $(BUILD_FLAGS) -tags "$(BUILD_TAGS) gcc" -o $(OUTPUT) ./cmd/tendermint/
+	CGO_ENABLED=1 go build -mod=readonly $(BUILD_FLAGS) -tags "$(BUILD_TAGS) gcc" -o $(OUTPUT) ./cmd/tendermint/
 
 build_race:
-	CGO_ENABLED=0 go build -race $(BUILD_FLAGS) -tags $(BUILD_TAGS) -o $(OUTPUT) ./cmd/tendermint
+	CGO_ENABLED=0 go build -mod=readonly -race $(BUILD_FLAGS) -tags $(BUILD_TAGS) -o $(OUTPUT) ./cmd/tendermint
 
 install:
-	CGO_ENABLED=0 go install  $(BUILD_FLAGS) -tags $(BUILD_TAGS) ./cmd/tendermint
+	CGO_ENABLED=0 go install -mod=readonly  $(BUILD_FLAGS) -tags $(BUILD_TAGS) ./cmd/tendermint
 
 install_c:
-	CGO_ENABLED=1 go install  $(BUILD_FLAGS) -tags "$(BUILD_TAGS) gcc" ./cmd/tendermint
+	CGO_ENABLED=1 go install -mod=readonly  $(BUILD_FLAGS) -tags "$(BUILD_TAGS) gcc" ./cmd/tendermint
 
 ########################################
 ### Protobuf
@@ -55,10 +56,10 @@ protoc_abci: abci/types/types.pb.go
 protoc_proto3types: types/proto3/block.pb.go
 
 build_abci:
-	@go build -i ./abci/cmd/...
+	@go build -mod=readonly -i ./abci/cmd/...
 
 install_abci:
-	@go install ./abci/cmd/...
+	@go install -mod=readonly ./abci/cmd/...
 
 ########################################
 ### Distribution
@@ -104,7 +105,7 @@ draw_deps:
 
 get_deps_bin_size:
 	@# Copy of build recipe with additional flags to perform binary size analysis
-	$(eval $(shell go build -work -a $(BUILD_FLAGS) -tags $(BUILD_TAGS) -o $(OUTPUT) ./cmd/tendermint/ 2>&1))
+	$(eval $(shell go build -mod=readonly -work -a $(BUILD_FLAGS) -tags $(BUILD_TAGS) -o $(OUTPUT) ./cmd/tendermint/ 2>&1))
 	@find $(WORK) -type f -name "*.a" | xargs -I{} du -hxs "{}" | sort -rh | sed -e s:${WORK}/::g > deps_bin_size.log
 	@echo "Results can be found here: $(CURDIR)/deps_bin_size.log"