diff --git a/config/config.go b/config/config.go
index 079d546a6..c9074fd1b 100644
--- a/config/config.go
+++ b/config/config.go
@@ -23,7 +23,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/prometheus/common/log"
 	"github.com/prometheus/common/model"
 	"gopkg.in/yaml.v2"
 )
@@ -409,8 +408,6 @@ type ScrapeConfig struct {
 	TLSConfig TLSConfig `yaml:"tls_config,omitempty"`
 
 	// List of labeled target groups for this job.
-	// XXX(fabxc): `target_groups` is deprecated.
-	TargetGroups  []*TargetGroup `yaml:"target_groups,omitempty"`
 	StaticConfigs []*TargetGroup `yaml:"static_configs,omitempty"`
 	// List of DNS service discovery configurations.
 	DNSSDConfigs []*DNSSDConfig `yaml:"dns_sd_configs,omitempty"`
@@ -460,14 +457,6 @@ func (c *ScrapeConfig) UnmarshalYAML(unmarshal func(interface{}) error) error {
 	if c.BasicAuth != nil && (len(c.BearerToken) > 0 || len(c.BearerTokenFile) > 0) {
 		return fmt.Errorf("at most one of basic_auth, bearer_token & bearer_token_file must be configured")
 	}
-	// Check `target_groups` deprecation.
-	if c.TargetGroups != nil && c.StaticConfigs != nil {
-		return fmt.Errorf("'target_groups' is deprecated, configure static targets via 'static_configs' only")
-	}
-	if c.TargetGroups != nil {
-		log.Warnf("The 'target_groups' option for scrape configurations is deprecated, use 'static_configs' instead")
-		c.StaticConfigs = c.TargetGroups
-	}
 	// Check for users putting URLs in target groups.
 	if len(c.RelabelConfigs) == 0 {
 		for _, tg := range c.StaticConfigs {