diff --git a/cmd/cmd.go b/cmd/cmd.go
index b285f83cb..05acaa0da 100644
--- a/cmd/cmd.go
+++ b/cmd/cmd.go
@@ -6,7 +6,6 @@ import (
 	"context"
 	"crypto/ed25519"
 	"crypto/rand"
-	"crypto/sha256"
 	"encoding/pem"
 	"errors"
 	"fmt"
@@ -24,6 +23,8 @@ import (
 	"syscall"
 	"time"
 
+	"github.com/minio/sha256-simd"
+
 	"github.com/containerd/console"
 	"github.com/mattn/go-runewidth"
 	"github.com/olekukonko/tablewriter"
diff --git a/convert/tokenizer.go b/convert/tokenizer.go
index efeb5491f..effc51c49 100644
--- a/convert/tokenizer.go
+++ b/convert/tokenizer.go
@@ -2,13 +2,14 @@ package convert
 
 import (
 	"cmp"
-	"crypto/sha256"
 	"encoding/json"
 	"fmt"
 	"log/slog"
 	"os"
 	"slices"
 
+	"github.com/minio/sha256-simd"
+
 	"golang.org/x/exp/maps"
 )
 
diff --git a/go.mod b/go.mod
index 2f3d4ca34..60d751241 100644
--- a/go.mod
+++ b/go.mod
@@ -33,6 +33,7 @@ require (
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/google/flatbuffers v24.3.25+incompatible // indirect
 	github.com/kr/text v0.2.0 // indirect
+	github.com/minio/sha256-simd v1.0.1 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rivo/uniseg v0.2.0 // indirect
diff --git a/go.sum b/go.sum
index 9e1baebe0..1991d948e 100644
--- a/go.sum
+++ b/go.sum
@@ -135,6 +135,8 @@ github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D
 github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
 github.com/mattn/go-runewidth v0.0.14 h1:+xnbZSEeDbOIg5/mE6JF0w6n9duR1l3/WmbinWVwUuU=
 github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
+github.com/minio/sha256-simd v1.0.1 h1:6kaan5IFmwTNynnKKpDHe6FWHohJOHhCPchzK49dzMM=
+github.com/minio/sha256-simd v1.0.1/go.mod h1:Pz6AKMiUdngCLpeTL/RJY1M9rUuPMYujV5xJjtbRSN8=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
diff --git a/llm/llama.cpp b/llm/llama.cpp
index 5921b8f08..74f33adf5 160000
--- a/llm/llama.cpp
+++ b/llm/llama.cpp
@@ -1 +1 @@
-Subproject commit 5921b8f089d3b7bda86aac5a66825df6a6c10603
+Subproject commit 74f33adf5f8b20b08fc5a6aa17ce081abe86ef2f
diff --git a/server/auth.go b/server/auth.go
index e92a5b657..3e9d67b3c 100644
--- a/server/auth.go
+++ b/server/auth.go
@@ -3,7 +3,6 @@ package server
 import (
 	"context"
 	"crypto/rand"
-	"crypto/sha256"
 	"encoding/base64"
 	"encoding/hex"
 	"encoding/json"
@@ -15,6 +14,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/minio/sha256-simd"
+
 	"github.com/ollama/ollama/api"
 	"github.com/ollama/ollama/auth"
 )
diff --git a/server/images.go b/server/images.go
index 9254671c8..6dc34b7a5 100644
--- a/server/images.go
+++ b/server/images.go
@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"cmp"
 	"context"
-	"crypto/sha256"
 	"encoding/base64"
 	"encoding/hex"
 	"encoding/json"
@@ -21,14 +20,16 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/minio/sha256-simd"
+
 	"golang.org/x/exp/slices"
 
 	"github.com/ollama/ollama/api"
 	"github.com/ollama/ollama/auth"
+	"github.com/ollama/ollama/envconfig"
 	"github.com/ollama/ollama/format"
 	"github.com/ollama/ollama/llm"
 	"github.com/ollama/ollama/parser"
-	"github.com/ollama/ollama/envconfig"
 	"github.com/ollama/ollama/types/errtypes"
 	"github.com/ollama/ollama/types/model"
 	"github.com/ollama/ollama/version"
diff --git a/server/layer.go b/server/layer.go
index cc6709d24..0ec51ea99 100644
--- a/server/layer.go
+++ b/server/layer.go
@@ -1,10 +1,11 @@
 package server
 
 import (
-	"crypto/sha256"
 	"fmt"
 	"io"
 	"os"
+
+	"github.com/minio/sha256-simd"
 )
 
 type Layer struct {
diff --git a/server/manifest.go b/server/manifest.go
index a52512980..9da53b4e0 100644
--- a/server/manifest.go
+++ b/server/manifest.go
@@ -2,7 +2,6 @@ package server
 
 import (
 	"bytes"
-	"crypto/sha256"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -10,6 +9,8 @@ import (
 	"os"
 	"path/filepath"
 
+	"github.com/minio/sha256-simd"
+
 	"github.com/ollama/ollama/types/model"
 )