diff --git a/cache.go b/cache.go
index ec98738..11ce50e 100644
--- a/cache.go
+++ b/cache.go
@@ -5,7 +5,6 @@ package cache
 
 import (
 	"encoding/json"
-	"errors"
 	"os"
 	"time"
 
@@ -119,7 +118,7 @@ func (c *Cache) Get(key string, dest any) (bool, error) {
 
 	dataStr, err := c.medium.Read(path)
 	if err != nil {
-		if errors.Is(err, os.ErrNotExist) {
+		if core.Is(err, os.ErrNotExist) {
 			return false, nil
 		}
 		return false, coreerr.E("cache.Get", "failed to read cache file", err)
@@ -195,7 +194,7 @@ func (c *Cache) Delete(key string) error {
 	}
 
 	err = c.medium.Delete(path)
-	if errors.Is(err, os.ErrNotExist) {
+	if core.Is(err, os.ErrNotExist) {
 		return nil
 	}
 	if err != nil {
diff --git a/go.mod b/go.mod
index 495911f..e0e28ad 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module dappco.re/go/core/cache
 go 1.26.0
 
 require (
-	dappco.re/go/core v0.6.0
+	dappco.re/go/core v0.8.0-alpha.1
 	dappco.re/go/core/io v0.2.0
 	dappco.re/go/core/log v0.1.0
 )
diff --git a/go.sum b/go.sum
index 3a59267..5a2e71c 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-dappco.re/go/core v0.6.0 h1:0wmuO/UmCWXxJkxQ6XvVLnqkAuWitbd49PhxjCsplyk=
-dappco.re/go/core v0.6.0/go.mod h1:f2/tBZ3+3IqDrg2F5F598llv0nmb/4gJVCFzM5geE4A=
+dappco.re/go/core v0.8.0-alpha.1 h1:gj7+Scv+L63Z7wMxbJYHhaRFkHJo2u4MMPuUSv/Dhtk=
+dappco.re/go/core v0.8.0-alpha.1/go.mod h1:f2/tBZ3+3IqDrg2F5F598llv0nmb/4gJVCFzM5geE4A=
 dappco.re/go/core/io v0.2.0 h1:zuudgIiTsQQ5ipVt97saWdGLROovbEB/zdVyy9/l+I4=
 dappco.re/go/core/io v0.2.0/go.mod h1:1QnQV6X9LNgFKfm8SkOtR9LLaj3bDcsOIeJOOyjbL5E=
 dappco.re/go/core/log v0.1.0 h1:pa71Vq2TD2aoEUQWFKwNcaJ3GBY8HbaNGqtE688Unyc=