diff --git a/info.yml b/info.yml
index 0290b70..ae37938 100644
--- a/info.yml
+++ b/info.yml
@@ -1,6 +1,6 @@
 name: nss
 description: Network Security Services
-version: "3.127"
+version: "3.129"
 revision: 1
 url: https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS
 license: MPL-2.0
@@ -23,4 +23,4 @@ downloads:
   - url: https://archive.mozilla.org/pub/security/nss/releases/NSS_${BPM_PKG_VERSION//./_}_RTM/src/nss-${BPM_PKG_VERSION}.tar.gz
     extract_to: ${BPM_SOURCE}
     extract_strip_components: 1
-    checksum: 5a899cad21ae2c9d3c5132de79726eda8df3b7fdf18eeb239fc544d43b87338b
+    checksum: 38baa3b0a18a3f674843473b549753c96419a0151abd1e7a9b214ce0493d0785
diff --git a/recipe.sh b/recipe.sh
index d4e88b1..da039ac 100644
--- a/recipe.sh
+++ b/recipe.sh
@@ -10,6 +10,8 @@ prepare() {
 
   mkdir "$BPM_SOURCE"/certs
   ln -srft "$BPM_SOURCE"/certs "$BPM_SOURCE"/nss/lib/ckfw/builtins/{certdata.txt,nssckbi.h}
+
+  patch -i "$BPM_WORKDIR"/0001-fix-generating-nss.pc-with-system-nspr.patch "$BPM_SOURCE"/nss/build.sh
 }
 
 # The build function is executed in the source directory
diff --git a/source-files/0001-fix-generating-nss.pc-with-system-nspr.patch b/source-files/0001-fix-generating-nss.pc-with-system-nspr.patch
new file mode 100644
index 0000000..01af709
--- /dev/null
+++ b/source-files/0001-fix-generating-nss.pc-with-system-nspr.patch
@@ -0,0 +1,26 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: "Jan Alexander Steffens (heftig)" <heftig@archlinux.org>
+Date: Thu, 10 Sep 2026 00:04:58 +0200
+Subject: [PATCH] Fix generating nss.pc with system-nspr
+
+---
+ build.sh | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/build.sh b/build.sh
+index 06d9678e36b9..41b59b83d5c6 100755
+--- a/build.sh
++++ b/build.sh
+@@ -331,8 +331,10 @@ generate_pkg_config()
+     vpatch=$(sed -n 's/^#define NSS_VPATCH \([0-9]*\).*/\1/p' "$nss_h")
+     [ -n "$vmajor" ] || return 0
+ 
+-    nspr_version=$(sed -n 's/^Version: *//p' \
+-        "$obj_dir/lib/pkgconfig/nspr.pc" 2>/dev/null)
++    if [ "$no_local_nspr" = 0 ]; then
++        nspr_version=$(sed -n 's/^Version: *//p' \
++            "$obj_dir/lib/pkgconfig/nspr.pc" 2>/dev/null)
++    fi
+     : "${nspr_version:=4.32}"
+ 
+     mkdir -p "$obj_dir/lib/pkgconfig"