diff --git a/internal/reference/reference.go b/internal/reference/reference.go
index 1befee9cd3..8ef397e61f 100644
--- a/internal/reference/reference.go
+++ b/internal/reference/reference.go
@@ -24,6 +24,7 @@ import (
 	"os"
 	"path/filepath"
 	"reflect"
+	"slices"
 	"strings"
 
 	"github.com/hyperledger/firefly-common/pkg/fftypes"
@@ -892,17 +893,11 @@ func writeStructFields(ctx context.Context, t reflect.Type, rootPageNames, simpl
 
 		fieldInRootPages := false
 		fieldInSimpleTypes := false
-		for _, rootPageName := range rootPageNames {
-			if strings.ToLower(fieldType.Name()) == rootPageName {
-				fieldInRootPages = true
-				break
-			}
+		if slices.Contains(rootPageNames, strings.ToLower(fieldType.Name())) {
+			fieldInRootPages = true
 		}
-		for _, simpleTypeName := range simpleTypeNames {
-			if strings.ToLower(fieldType.Name()) == simpleTypeName {
-				fieldInSimpleTypes = true
-				break
-			}
+		if slices.Contains(simpleTypeNames, strings.ToLower(fieldType.Name())) {
+			fieldInSimpleTypes = true
 		}
 
 		link := ""
@@ -920,13 +915,7 @@ func writeStructFields(ctx context.Context, t reflect.Type, rootPageNames, simpl
 			fireflyType = fmt.Sprintf("[%s](%s)", fireflyType, link)
 
 			// Generate the table for the sub type
-			tableAlreadyGenerated := false
-			for _, tableName := range generatedTableNames {
-				if strings.ToLower(fieldType.Name()) == tableName {
-					tableAlreadyGenerated = true
-					break
-				}
-			}
+			tableAlreadyGenerated := slices.Contains(generatedTableNames, strings.ToLower(fieldType.Name()))
 			if isStruct && !tableAlreadyGenerated && !fieldInRootPages && !fieldInSimpleTypes {
 				subFieldBuff.WriteString(fmt.Sprintf("## %s\n\n", fieldType.Name()))
 				subFieldMarkdown, newTableNames, _ := generateObjectReferenceMarkdown(ctx, false, nil, fieldType, rootPageNames, simpleTypeNames, generatedTableNames, outputPath)
diff --git a/internal/spievents/websockets.go b/internal/spievents/websockets.go
index c78b5630c4..ac6fd272c2 100644
--- a/internal/spievents/websockets.go
+++ b/internal/spievents/websockets.go
@@ -20,6 +20,7 @@ import (
 	"context"
 	"encoding/json"
 	"io"
+	"slices"
 	"sync"
 	"time"
 
@@ -66,36 +67,18 @@ func newWebSocket(ae *adminEventManager, wsConn *websocket.Conn) *webSocket {
 }
 
 func (wc *webSocket) eventMatches(changeEvent *core.ChangeEvent) bool {
-	collectionMatches := false
-	for _, c := range wc.collections {
-		if c == changeEvent.Collection {
-			collectionMatches = true
-			break
-		}
-	}
+	collectionMatches := slices.Contains(wc.collections, changeEvent.Collection)
 	if !collectionMatches {
 		return false
 	}
 	if len(wc.filter.Namespaces) > 0 {
-		namespaceMatches := false
-		for _, ns := range wc.filter.Namespaces {
-			if ns == changeEvent.Namespace {
-				namespaceMatches = true
-				break
-			}
-		}
+		namespaceMatches := slices.Contains(wc.filter.Namespaces, changeEvent.Namespace)
 		if !namespaceMatches {
 			return false
 		}
 	}
 	if len(wc.filter.Types) > 0 {
-		typeMatches := false
-		for _, t := range wc.filter.Types {
-			if t == changeEvent.Type {
-				typeMatches = true
-				break
-			}
-		}
+		typeMatches := slices.Contains(wc.filter.Types, changeEvent.Type)
 		if !typeMatches {
 			return false
 		}