diff --git a/acceptance/values.yaml b/acceptance/values.yaml
index 2314ba5a..12bb437d 100644
--- a/acceptance/values.yaml
+++ b/acceptance/values.yaml
@@ -1,7 +1,7 @@
 # Set actions-runner-controller settings for testing
-logLevel: "-3"
+logLevel: "-4"
 githubWebhookServer:
-  logLevel: "-3"
+  logLevel: "-4"
   enabled: true
   labels: {}
   replicaCount: 1
diff --git a/logging/transport.go b/logging/transport.go
index 9d61a318..50564b7b 100644
--- a/logging/transport.go
+++ b/logging/transport.go
@@ -2,6 +2,8 @@
 package logging
 
 import (
+	"bytes"
+	"io"
 	"net/http"
 
 	"github.com/go-logr/logr"
@@ -47,5 +49,18 @@ func (t Transport) log(req *http.Request, resp *http.Response) {
 		args = append(args, "ratelimit_remaining", remaining)
 	}
 
+	if t.Log.V(4).Enabled() {
+		var buf bytes.Buffer
+
+		if _, err := io.Copy(&buf, resp.Body); err != nil {
+			t.Log.V(3).Info("unable to copy http response", "error", err)
+		}
+		resp.Body.Close()
+
+		t.Log.V(4).Info("Logging HTTP round-trip", "method", req.Method, "requestHeader", req.Header, "statusCode", resp.StatusCode, "responseHeader", resp.Header, "responseBody", buf.String())
+
+		resp.Body = io.NopCloser(&buf)
+	}
+
 	t.Log.V(3).Info("Seen HTTP response", args...)
 }