diff --git a/scripts/ci.sh b/scripts/ci.sh
index d5037213..c32e25d6 100755
--- a/scripts/ci.sh
+++ b/scripts/ci.sh
@@ -9,101 +9,105 @@ GRPC_VERSION=v1.29.1
 function version_gt() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"; }
 
 update_go() {
-	CURRENT_GO_VERSION=$(go version | sed 's/[^0-9.]*\([0-9.]*\).*/\1/')
-	if version_gt $GO_VERSION $CURRENT_GO_VERSION; then
-		echo "Update go version from $CURRENT_GO_VERSION to $GO_VERSION ..."
-		sudo rm -rf /usr/local/go
-		sudo rm -rf /usr/local/golang
-		sudo rm -rf /usr/bin/go
-		wget https://dl.google.com/go/go$GO_VERSION.linux-amd64.tar.gz
-		tar -xvf go$GO_VERSION.linux-amd64.tar.gz
-		rm go$GO_VERSION.linux-amd64.tar.gz
-		sudo mv go /usr/local
-		export GOROOT=/usr/local/go
-		export GOPATH=/home/runner/go/src
-		export GOBIN=/home/runner/go/bin
-		mkdir -p $GOPATH
-		mkdir $GOBIN
-		# remove other Go version from path
-		export PATH=$PATH:/usr/local/go/bin:$GOBIN
-	fi
-	go version
+    CURRENT_GO_VERSION=$(go version | sed 's/[^0-9.]*\([0-9.]*\).*/\1/')
+    if version_gt $GO_VERSION $CURRENT_GO_VERSION; then
+        echo "Update go version from $CURRENT_GO_VERSION to $GO_VERSION ..."
+        sudo rm -rf /usr/local/go
+        sudo rm -rf /usr/local/golang
+        sudo rm -rf /usr/bin/go
+        wget https://dl.google.com/go/go$GO_VERSION.linux-amd64.tar.gz
+        tar -xvf go$GO_VERSION.linux-amd64.tar.gz
+        rm go$GO_VERSION.linux-amd64.tar.gz
+        sudo mv go /usr/local
+        export GOROOT=/usr/local/go
+        export GOPATH=/home/runner/go/src
+        export GOBIN=/home/runner/go/bin
+        mkdir -p $GOPATH
+        mkdir $GOBIN
+        # remove other Go version from path
+        export PATH=$PATH:/usr/local/go/bin:$GOBIN
+    fi
+    go version
 }
 
 setup_protoc() {
-	echo "Setting up protoc..."
-	PROTOC_ZIP=protoc-$PROTOC_VERSION-linux-x86_64.zip
-	curl -0L https://github.com/google/protobuf/releases/download/v$PROTOC_VERSION/$PROTOC_ZIP -o $PROTOC_ZIP
-	unzip -o $PROTOC_ZIP -d protoc3
-	sudo mv protoc3/bin/* /usr/local/bin/
-	sudo mv protoc3/include/* /usr/local/include/
-	rm -f PROTOC_ZIP
+    # Execute `go get` for protoc dependencies outside of project dir.
+    cd ..
+    export GO111MODULE=on
+    echo "Setting up protoc..."
+    PROTOC_ZIP=protoc-$PROTOC_VERSION-linux-x86_64.zip
+    curl -0L https://github.com/google/protobuf/releases/download/v$PROTOC_VERSION/$PROTOC_ZIP -o $PROTOC_ZIP
+    unzip -o $PROTOC_ZIP -d protoc3
+    sudo mv protoc3/bin/* /usr/local/bin/
+    sudo mv protoc3/include/* /usr/local/include/
+    rm -f PROTOC_ZIP
 
-	go get -u github.com/golang/protobuf/protoc-gen-go@$PROTOC_GEN_VERSION \
-		github.com/gogo/protobuf/protoc-gen-gofast@$PROTOC_GOFAST_VERSION \
-		google.golang.org/grpc@$GRPC_VERSION
+    go get -u github.com/golang/protobuf/protoc-gen-go@$PROTOC_GEN_VERSION \
+            github.com/gogo/protobuf/protoc-gen-gofast@$PROTOC_GOFAST_VERSION \
+            google.golang.org/grpc@$GRPC_VERSION
 
-	export PATH=$PATH:/usr/local/bin/protoc
+    export PATH=$PATH:/usr/local/bin/protoc
+    cd mainflux
 }
 
 setup_mf() {
-	echo "Setting up Mainflux..."
-	for p in $(ls *.pb.go); do
-		mv $p $p.tmp
-	done
-	for p in $(ls pkg/*/*.pb.go); do
-		mv $p $p.tmp
-	done
-	make proto
-	for p in $(ls *.pb.go); do
-		if ! cmp -s $p $p.tmp; then
-			echo "Proto file and generated Go file $p are out of sync!"
-			exit 1
-		fi
-	done
-	for p in $(ls pkg/*/*.pb.go); do
-		if ! cmp -s $p $p.tmp; then
-			echo "Proto file and generated Go file $p are out of sync!"
-			exit 1
-		fi
-	done
-	make -j$NPROC
+    echo "Setting up Mainflux..."
+    for p in $(ls *.pb.go); do
+        mv $p $p.tmp
+    done
+    for p in $(ls pkg/*/*.pb.go); do
+        mv $p $p.tmp
+    done
+    make proto
+    for p in $(ls *.pb.go); do
+        if ! cmp -s $p $p.tmp; then
+            echo "Proto file and generated Go file $p are out of sync!"
+            exit 1
+        fi
+    done
+    for p in $(ls pkg/*/*.pb.go); do
+        if ! cmp -s $p $p.tmp; then
+            echo "Proto file and generated Go file $p are out of sync!"
+            exit 1
+        fi
+    done
+    make -j$NPROC
 }
 
 setup_lint() {
-	# binary will be $(go env GOBIN)/golangci-lint
-	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOBIN) v1.24.0
+    # binary will be $(go env GOBIN)/golangci-lint
+    curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOBIN) v1.24.0
 
 }
 
 setup() {
-	echo "Setting up..."
-	update_go
-	setup_protoc
-	setup_mf
-	setup_lint
+    echo "Setting up..."
+    update_go
+    setup_protoc
+    setup_mf
+    setup_lint
 }
 
 run_test() {
-	echo "Running lint..."
-	golangci-lint run --no-config --disable-all --enable=golint
-	echo "Running tests..."
-	echo "" > coverage.txt
-	for d in $(go list ./... | grep -v 'vendor\|cmd'); do
-		GOCACHE=off
-		go test -mod=vendor -v -race -tags test -coverprofile=profile.out -covermode=atomic $d
-		if [ -f profile.out ]; then
-			cat profile.out >> coverage.txt
-			rm profile.out
-		fi
-	done
+    echo "Running lint..."
+    golangci-lint run --no-config --disable-all --enable=golint
+    echo "Running tests..."
+    echo "" > coverage.txt
+    for d in $(go list ./... | grep -v 'vendor\|cmd'); do
+        GOCACHE=off
+        go test -mod=vendor -v -race -tags test -coverprofile=profile.out -covermode=atomic $d
+        if [ -f profile.out ]; then
+            cat profile.out >> coverage.txt
+            rm profile.out
+        fi
+    done
 }
 
 push() {
-	if test -n "$BRANCH_NAME" && test "$BRANCH_NAME" = "master"; then
-		echo "Pushing Docker images..."
-		make -j$NPROC latest
-	fi
+    if test -n "$BRANCH_NAME" && test "$BRANCH_NAME" = "master"; then
+        echo "Pushing Docker images..."
+        make -j$NPROC latest
+    fi
 }
 
 set -e