diff --git a/flakehashes.json b/flakehashes.json
index 232ed56c8..9ee6ccb99 100644
--- a/flakehashes.json
+++ b/flakehashes.json
@@ -1,10 +1,10 @@
 {
   "toolchain": {
-    "rev": "dfe2a5fd8ee2e68b08ce5ff259269f50ecadf2f4",
-    "sri": "sha256-pCvFNTFuvhSBb5O+PPuilaowP4tXcCOP1NgYUDJTcJU="
+    "rev": "e877d973840c91ec9d4bc1921b0845789de359ae",
+    "sri": "sha256-HeD70CytKL0Ks/VDqMU73bN8fxpWkNc6mNgNr9PEO7k="
   },
   "vendor": {
-    "goModSum": "sha256-P3V7maoKyvDCGEj/snR+jbAb2kY0jiUtXBtL762K3dU=",
+    "goModSum": "sha256-IbxUmMBapp3G2WIK+gqfmQd1tLCVoHMYBHLPZ5ZjDIU=",
     "sri": "sha256-mbxLXR2TBgiwyVGfLmMR5xWk+0f66mPDas95Wla70Lk="
   }
 }
diff --git a/go.mod b/go.mod
index 5b7fc3d6b..11b6605bf 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module tailscale.com
 
-go 1.26.2
+go 1.26.3
 
 require (
 	filippo.io/mkcert v1.4.4
diff --git a/go.toolchain.next.rev b/go.toolchain.next.rev
index dbcbdd5e1..fd5a21697 100644
--- a/go.toolchain.next.rev
+++ b/go.toolchain.next.rev
@@ -1 +1 @@
-dfe2a5fd8ee2e68b08ce5ff259269f50ecadf2f4
+e877d973840c91ec9d4bc1921b0845789de359ae
diff --git a/go.toolchain.rev b/go.toolchain.rev
index dbcbdd5e1..fd5a21697 100644
--- a/go.toolchain.rev
+++ b/go.toolchain.rev
@@ -1 +1 @@
-dfe2a5fd8ee2e68b08ce5ff259269f50ecadf2f4
+e877d973840c91ec9d4bc1921b0845789de359ae
diff --git a/go.toolchain.version b/go.toolchain.version
index c7c3f3333..f8f738140 100644
--- a/go.toolchain.version
+++ b/go.toolchain.version
@@ -1 +1 @@
-1.26.2
+1.26.3