diff --git a/.gitignore b/.gitignore
index 890149a..4257fef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-bangs.json
+/evaluator/vendor/
diff --git a/Dockerfile b/Dockerfile
index ecce4f1..489d6d9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,7 +13,7 @@ RUN go get -v \
 FROM scratch
 
 COPY --from=builder /go/src/git.sbruder.de/simon/bangs/evaluator/evaluator /evaluator
-copy bangs.json /bangs.json
+COPY bangs.yml /bangs.yml
 
 USER 1000
 
diff --git a/evaluator/evaluator.go b/evaluator/evaluator.go
index 06c3ebf..b9c1ebc 100644
--- a/evaluator/evaluator.go
+++ b/evaluator/evaluator.go
@@ -1,13 +1,14 @@
 package main
 
 import (
-	"encoding/json"
 	"io/ioutil"
 	"log"
 	"net/http"
 	"net/url"
 	"regexp"
 	"strings"
+
+	"gopkg.in/yaml.v2"
 )
 
 var bangs = loadBangs()
@@ -32,12 +33,12 @@ func main() {
 }
 
 func loadBangs() (bangs map[string]string) {
-	data, err := ioutil.ReadFile("bangs.json")
+	data, err := ioutil.ReadFile("bangs.yml")
 	if err != nil {
 		log.Fatalf("Failed to read bangs: %v", err)
 	}
 
-	err = json.Unmarshal(data, &bangs)
+	err = yaml.Unmarshal(data, &bangs)
 	if err != nil {
 		log.Fatalf("Failed to decode bangs: %v", err)
 	}
diff --git a/evaluator/go.mod b/evaluator/go.mod
index 07ee243..4ffcf41 100644
--- a/evaluator/go.mod
+++ b/evaluator/go.mod
@@ -1,3 +1,5 @@
 module git.sbruder.de/simon/bangs/evaluator
 
 go 1.15
+
+require gopkg.in/yaml.v2 v2.4.0
diff --git a/evaluator/go.sum b/evaluator/go.sum
new file mode 100644
index 0000000..7534661
--- /dev/null
+++ b/evaluator/go.sum
@@ -0,0 +1,3 @@
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=