diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 730853c..4ee9a24 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     services:
       ctfd:
-        image: ctfd/ctfd:3.7.3@sha256:90470e1fe0f93028ce6ac197b8942916ee157d4b5d33c8266c5bec7662e55ac3
+        image: ctfd/ctfd:3.7.4@sha256:b2cc1ff1767d919282cf9811ec41a9a4f994d502f502b4a8852999ffb1b7e81a
         ports:
           - 8000:8000
     steps:
diff --git a/README.md b/README.md
index 51642f4..13cd648 100644
--- a/README.md
+++ b/README.md
@@ -13,4 +13,4 @@
 
 Golang client for interacting with [CTFd](https://ctfd.io/).
 
-Last version tested on: [3.7.3](https://github.com/CTFd/CTFd/releases/tag/3.7.3).
+Last version tested on: [3.7.4](https://github.com/CTFd/CTFd/releases/tag/3.7.4).
diff --git a/api/challenges.go b/api/challenges.go
index 31534ba..19bfd49 100644
--- a/api/challenges.go
+++ b/api/challenges.go
@@ -26,6 +26,7 @@ type PostChallengesParams struct {
 	Name           string        `json:"name"`
 	Category       string        `json:"category"`
 	Description    string        `json:"description"`
+	Attribution    *string       `json:"attribution,omitempty"`
 	Function       string        `json:"function"`
 	ConnectionInfo *string       `json:"connection_info,omitempty"`
 	Value          int           `json:"value"`
@@ -81,6 +82,7 @@ type PatchChallengeParams struct {
 	Name           string  `json:"name"`
 	Category       string  `json:"category"`
 	Description    string  `json:"description"`
+	Attribution    *string `json:"attribution,omitempty"`
 	Function       string  `json:"function"`
 	ConnectionInfo *string `json:"connection_info,omitempty"`
 	Value          *int    `json:"value,omitempty"`
diff --git a/api/model.go b/api/model.go
index 43b5296..4159e44 100644
--- a/api/model.go
+++ b/api/model.go
@@ -5,6 +5,7 @@ type (
 		ID             int           `json:"id"`
 		Name           string        `json:"name"`
 		Description    string        `json:"description"`
+		Attribution    *string       `json:"attribution"`
 		ConnectionInfo *string       `json:"connection_info,omitempty"`
 		MaxAttempts    *int          `json:"max_attempts,omitempty"`
 		Function       string        `json:"function"`
diff --git a/examples/setup/main.go b/examples/setup/main.go
index 8820a3f..bfe8ac0 100644
--- a/examples/setup/main.go
+++ b/examples/setup/main.go
@@ -61,6 +61,7 @@ func main() {
 		Name:           "Break The License 1/2",
 		Category:       "crypto",
 		Description:    "...",
+		Attribution:    ptr("pandatix"),
 		Function:       "logarithmic",
 		ConnectionInfo: ptr("ssh -l user@crypto1.ctfer.io"),
 		MaxAttempts:    ptr(3),
@@ -121,6 +122,7 @@ func main() {
 		Name:           ch.Name,
 		Category:       ch.Category,
 		Description:    ch.Description,
+		Attribution:    ch.Attribution,
 		Function:       ch.Function,
 		ConnectionInfo: ch.ConnectionInfo,
 		Initial:        ch.Initial,