diff --git a/Makefile b/Makefile
index d3b93e47e..48b385d04 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ test: test-js test-go
 acceptance-all: start acceptance acceptance-firefox stop
 test-all: test acceptance-all
 fmt: fmt-js fmt-go
-upgrade: upgrade-js upgrade-go
+upgrade: dep-upgrade-js dep-upgrade
 clean-local: clean-local-config clean-local-share clean-local-cache
 clean-install: clean-local dep build-js install-bin install-assets
 start:
@@ -55,6 +55,10 @@ dep-js:
 	(cd frontend &&	npm install --silent)
 dep-go:
 	go build -v ./...
+dep-upgrade:
+	go get -u -t ./...
+dep-upgrade-js:
+	(cd frontend &&	npm --depth 3 update)
 dep-tensorflow:
 	scripts/download-nasnet.sh
 	scripts/download-nsfw.sh
@@ -135,8 +139,3 @@ fmt-go:
 	go fmt ./pkg/... ./internal/... ./cmd/...
 tidy:
 	go mod tidy
-upgrade-js:
-	(cd frontend &&	npm --depth 2 update)
-upgrade-go:
-	go mod tidy
-	go get -u
diff --git a/internal/classify/rules.go b/internal/classify/rules.go
index e9c4046d0..5b40a17e8 100644
--- a/internal/classify/rules.go
+++ b/internal/classify/rules.go
@@ -351,10 +351,10 @@ var rules = LabelRules{
 		Categories: []string{"animal"},
 	},
 	"ball": {
-		Label:      "sports",
-		Threshold:  0.000000,
-		Priority:   -1,
-		Categories: []string{"round"},
+		Label:      "",
+		Threshold:  1.000000,
+		Priority:   -2,
+		Categories: []string{},
 	},
 	"balloon": {
 		Label:      "",
@@ -453,10 +453,10 @@ var rules = LabelRules{
 		Categories: []string{},
 	},
 	"baseball": {
-		Label:      "sports",
-		Threshold:  0.000000,
-		Priority:   -1,
-		Categories: []string{"round"},
+		Label:      "",
+		Threshold:  1.000000,
+		Priority:   -2,
+		Categories: []string{},
 	},
 	"basenji dog": {
 		Label:      "dog",
@@ -471,10 +471,10 @@ var rules = LabelRules{
 		Categories: []string{},
 	},
 	"basketball": {
-		Label:      "sports",
-		Threshold:  0.000000,
-		Priority:   -1,
-		Categories: []string{"round"},
+		Label:      "",
+		Threshold:  1.000000,
+		Priority:   -2,
+		Categories: []string{},
 	},
 	"basset dog": {
 		Label:      "dog",
@@ -574,19 +574,19 @@ var rules = LabelRules{
 	},
 	"beer": {
 		Label:      "beer",
-		Threshold:  0.250000,
+		Threshold:  0.400000,
 		Priority:   0,
 		Categories: []string{"beverage", "drinks"},
 	},
 	"beer bottle": {
 		Label:      "beer",
-		Threshold:  0.250000,
+		Threshold:  0.400000,
 		Priority:   0,
 		Categories: []string{"beverage", "drinks"},
 	},
 	"beer glass": {
 		Label:      "beer",
-		Threshold:  0.250000,
+		Threshold:  0.400000,
 		Priority:   0,
 		Categories: []string{"beverage", "drinks"},
 	},
@@ -1516,7 +1516,7 @@ var rules = LabelRules{
 	},
 	"cooking": {
 		Label:      "cooking",
-		Threshold:  0.200000,
+		Threshold:  0.400000,
 		Priority:   0,
 		Categories: []string{},
 	},
@@ -2236,7 +2236,7 @@ var rules = LabelRules{
 	},
 	"frying pan": {
 		Label:      "cooking",
-		Threshold:  0.200000,
+		Threshold:  0.400000,
 		Priority:   0,
 		Categories: []string{},
 	},
@@ -2361,10 +2361,10 @@ var rules = LabelRules{
 		Categories: []string{"water", "animal"},
 	},
 	"golf ball": {
-		Label:      "sports",
-		Threshold:  0.000000,
-		Priority:   -1,
-		Categories: []string{"round"},
+		Label:      "",
+		Threshold:  1.000000,
+		Priority:   -2,
+		Categories: []string{},
 	},
 	"golfcart": {
 		Label:      "outdoor",
@@ -3148,7 +3148,7 @@ var rules = LabelRules{
 	},
 	"ladle": {
 		Label:      "cooking",
-		Threshold:  0.200000,
+		Threshold:  0.400000,
 		Priority:   0,
 		Categories: []string{},
 	},
@@ -3994,7 +3994,7 @@ var rules = LabelRules{
 	},
 	"pan": {
 		Label:      "cooking",
-		Threshold:  0.200000,
+		Threshold:  0.400000,
 		Priority:   0,
 		Categories: []string{},
 	},
@@ -4209,10 +4209,10 @@ var rules = LabelRules{
 		Categories: []string{"fruit"},
 	},
 	"ping-pong ball": {
-		Label:      "sports",
-		Threshold:  0.000000,
-		Priority:   -1,
-		Categories: []string{"round"},
+		Label:      "",
+		Threshold:  1.000000,
+		Priority:   -2,
+		Categories: []string{},
 	},
 	"pinwheel": {
 		Label:      "",
@@ -4707,10 +4707,10 @@ var rules = LabelRules{
 		Categories: []string{"animal"},
 	},
 	"rugby ball": {
-		Label:      "sports",
-		Threshold:  0.000000,
-		Priority:   -1,
-		Categories: []string{"round"},
+		Label:      "",
+		Threshold:  1.000000,
+		Priority:   -2,
+		Categories: []string{},
 	},
 	"rule": {
 		Label:      "",
@@ -5097,10 +5097,10 @@ var rules = LabelRules{
 		Categories: []string{},
 	},
 	"soccer ball": {
-		Label:      "sports",
-		Threshold:  0.000000,
-		Priority:   -1,
-		Categories: []string{"round"},
+		Label:      "",
+		Threshold:  1.000000,
+		Priority:   -2,
+		Categories: []string{},
 	},
 	"sock": {
 		Label:      "portrait",
@@ -5529,10 +5529,10 @@ var rules = LabelRules{
 		Categories: []string{"water", "animal"},
 	},
 	"tennis ball": {
-		Label:      "sports",
-		Threshold:  0.000000,
-		Priority:   -1,
-		Categories: []string{"round"},
+		Label:      "",
+		Threshold:  1.000000,
+		Priority:   -2,
+		Categories: []string{},
 	},
 	"terrapin": {
 		Label:      "turtle",
@@ -5919,10 +5919,10 @@ var rules = LabelRules{
 		Categories: []string{},
 	},
 	"volleyball": {
-		Label:      "sports",
-		Threshold:  0.000000,
-		Priority:   -1,
-		Categories: []string{"round"},
+		Label:      "",
+		Threshold:  1.000000,
+		Priority:   -2,
+		Categories: []string{},
 	},
 	"vulture bird": {
 		Label:      "bird",
diff --git a/internal/classify/rules.yml b/internal/classify/rules.yml
index df2fee516..4dffbd69b 100644
--- a/internal/classify/rules.yml
+++ b/internal/classify/rules.yml
@@ -1880,7 +1880,7 @@ beacon:
 
 beer:
   label: beer
-  threshold: 0.25
+  threshold: 0.4
   categories:
     - beverage
     - drinks
@@ -2352,7 +2352,7 @@ jeep:
 
 cooking:
   label: cooking
-  threshold: 0.2
+  threshold: 0.4
 
 pan:
   see: cooking