diff --git a/api/types.go b/api/types.go
index 2e762b39..7fe2b4e4 100644
--- a/api/types.go
+++ b/api/types.go
@@ -2,6 +2,7 @@ package api
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
 	"math"
 	"os"
@@ -307,7 +308,7 @@ func (m *Metrics) Summary() {
 	}
 }
 
-var ErrInvalidOpts = fmt.Errorf("invalid options")
+var ErrInvalidOpts = errors.New("invalid options")
 
 func (opts *Options) FromMap(m map[string]interface{}) error {
 	valueOpts := reflect.ValueOf(opts).Elem() // names of the fields in the options struct
diff --git a/llm/payload.go b/llm/payload.go
index 8a134357..46713c43 100644
--- a/llm/payload.go
+++ b/llm/payload.go
@@ -17,7 +17,7 @@ import (
 	"github.com/ollama/ollama/gpu"
 )
 
-var errPayloadMissing = fmt.Errorf("expected payloads not included in this build of ollama")
+var errPayloadMissing = errors.New("expected payloads not included in this build of ollama")
 
 func Init() error {
 	payloadsDir, err := gpu.PayloadsDir()
diff --git a/server/images.go b/server/images.go
index 74fa1a5e..dd44a0f4 100644
--- a/server/images.go
+++ b/server/images.go
@@ -1137,7 +1137,7 @@ func GetSHA256Digest(r io.Reader) (string, int64) {
 	return fmt.Sprintf("sha256:%x", h.Sum(nil)), n
 }
 
-var errUnauthorized = fmt.Errorf("unauthorized")
+var errUnauthorized = errors.New("unauthorized")
 
 func makeRequestWithRetry(ctx context.Context, method string, requestURL *url.URL, headers http.Header, body io.ReadSeeker, regOpts *registryOptions) (*http.Response, error) {
 	for i := 0; i < 2; i++ {
@@ -1255,7 +1255,7 @@ func parseRegistryChallenge(authStr string) registryChallenge {
 	}
 }
 
-var errDigestMismatch = fmt.Errorf("digest mismatch, file must be downloaded again")
+var errDigestMismatch = errors.New("digest mismatch, file must be downloaded again")
 
 func verifyBlob(digest string) error {
 	fp, err := GetBlobsPath(digest)