diff --git a/.github/scripts/release.sh b/.github/scripts/release.sh
index 9211c90..35568a2 100644
--- a/.github/scripts/release.sh
+++ b/.github/scripts/release.sh
@@ -12,6 +12,8 @@
 set -e
 set -o pipefail
 
+UPSTREAM_BRANCH="main"
+
 # Assign command line arguments to variables.
 GIT_TOKEN=$1
 WORK_DIR=$2
diff --git a/Makefile b/Makefile
index 1a8495b..c9ef883 100644
--- a/Makefile
+++ b/Makefile
@@ -31,21 +31,18 @@ build: clean test build-linux build-linux-arm build-darwin
 build-linux:
 	mkdir -p $(BUILD_DIR)/linux
 	GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -x -ldflags "-X main.version=$(BUILD_VERSION) \
-	-X 'main.buildDate=$$(date -u '+%Y-%m-%d %H:%M:%S UTC')'" \
 	-o $(BUILD_DIR)/linux/openmcpauthproxy $(PROJECT_ROOT)/cmd/proxy
 	cp config.yaml $(BUILD_DIR)/linux
 
 build-linux-arm:
 	mkdir -p $(BUILD_DIR)/linux-arm
 	GOOS=linux GOARCH=arm CGO_ENABLED=0 go build -x -ldflags "-X main.version=$(BUILD_VERSION) \
-	-X 'main.buildDate=$$(date -u '+%Y-%m-%d %H:%M:%S UTC')'" \
 	-o $(BUILD_DIR)/linux-arm/openmcpauthproxy $(PROJECT_ROOT)/cmd/proxy
 	cp config.yaml $(BUILD_DIR)/linux-arm
 
 build-darwin:
 	mkdir -p $(BUILD_DIR)/darwin
 	GOOS=darwin GOARCH=amd64 CGO_ENABLED=0 go build -x -ldflags "-X main.version=$(BUILD_VERSION) \
-	-X 'main.buildDate=$$(date -u '+%Y-%m-%d %H:%M:%S UTC')'" \
 	-o $(BUILD_DIR)/darwin/openmcpauthproxy $(PROJECT_ROOT)/cmd/proxy
 	cp config.yaml $(BUILD_DIR)/darwin
 
diff --git a/go.mod b/go.mod
index 2d26216..0bceb4f 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/wso2/open-mcp-auth-proxy
 
-go 1.22.3
+go 1.21
 
 require (
 	github.com/golang-jwt/jwt/v4 v4.5.2