diff --git a/main/nettle/APKBUILD b/main/nettle/APKBUILD
index d98d0deff46f4909e949a8aed818b003e8cd28cb..9908ba0ecda33f75cbbc8bfaeb0d300e7360f7bb 100644
--- a/main/nettle/APKBUILD
+++ b/main/nettle/APKBUILD
@@ -2,7 +2,7 @@
 # Contributor: Fabian Affolter <fabian@affolter-engineering.ch>
 # Maintainer: Fabian Affolter <fabian@affolter-engineering.ch>
 pkgname=nettle
-pkgver=3.7.2
+pkgver=3.7.3
 pkgrel=0
 pkgdesc="A low-level cryptographic library"
 url="https://www.lysator.liu.se/~nisse/nettle/"
@@ -14,6 +14,8 @@ subpackages="$pkgname-static $pkgname-dev $pkgname-utils"
 source="https://ftp.gnu.org/gnu/nettle/nettle-$pkgver.tar.gz"
 
 # secfixes:
+#   3.7.3-r0:
+#     - CVE-2021-3580
 #   3.7.2-r0:
 #     - CVE-2021-20305
 
@@ -51,4 +53,6 @@ utils() {
 	mv "$pkgdir"/usr/bin "$subpkgdir"/usr/
 }
 
-sha512sums="5f6edcc24ff620885b24394b31e55b494418c35dd63e6ece222ddabc58e793c44a82155051cc5759896ed5f014a8efd547f0aef6736a131e41651c5cab7c7211  nettle-3.7.2.tar.gz"
+sha512sums="
+9901eba305421adff6d551ac7f478dff3f68a339d444c776724ab0b977fe6be792b1d2950c8705acbe76bd924fd6d898a65eded546777884be3b436d0e052437  nettle-3.7.3.tar.gz
+"