diff --git a/pkgs/by-name/mu/mupdf/package.nix b/pkgs/by-name/mu/mupdf/package.nix
index 5ae579c54aaa..663afebde3b7 100644
--- a/pkgs/by-name/mu/mupdf/package.nix
+++ b/pkgs/by-name/mu/mupdf/package.nix
@@ -62,12 +62,12 @@ let
 in
 
 stdenv.mkDerivation rec {
-  version = "1.26.1";
+  version = "1.26.8";
   pname = "mupdf";
 
   src = fetchurl {
     url = "https://mupdf.com/downloads/archive/${pname}-${version}-source.tar.gz";
-    hash = "sha256-vc4BfHdnRMKIsCECl37gN4y0NseN+BJ6I/KB8TYEBv0=";
+    hash = "sha256-6NJIpmbSOG9KIBTWgLbojeXOn9jIR7DidMvswSTzPMc=";
   };
 
   patches = [
@@ -276,7 +276,7 @@ stdenv.mkDerivation rec {
     };
 
     updateScript = gitUpdater {
-      url = "https://git.ghostscript.com/mupdf.git";
+      url = "https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git";
       ignoredVersions = ".rc.*";
     };
   };
@@ -284,7 +284,7 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = "https://mupdf.com";
     description = "Lightweight PDF, XPS, and E-book viewer and toolkit written in portable C";
-    changelog = "https://git.ghostscript.com/?p=mupdf.git;a=blob_plain;f=CHANGES;hb=${version}";
+    changelog = "https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/plain/CHANGES?h=refs/tags/${version}";
     license = lib.licenses.agpl3Plus;
     maintainers = with lib.maintainers; [ fpletz ];
     platforms = lib.platforms.unix;
diff --git a/pkgs/development/python-modules/pymupdf/default.nix b/pkgs/development/python-modules/pymupdf/default.nix
index 15a7a69ba947..ed5b711b247b 100644
--- a/pkgs/development/python-modules/pymupdf/default.nix
+++ b/pkgs/development/python-modules/pymupdf/default.nix
@@ -45,7 +45,7 @@ let
 in
 buildPythonPackage rec {
   pname = "pymupdf";
-  version = "1.26.3";
+  version = "1.26.4";
   pyproject = true;
 
   disabled = pythonOlder "3.9";
@@ -54,7 +54,7 @@ buildPythonPackage rec {
     owner = "pymupdf";
     repo = "PyMuPDF";
     tag = version;
-    hash = "sha256-djTbALLvdX2jOTGgoyUIBhiqJ6KzM+Dkb4M7d2eVoPM=";
+    hash = "sha256-bzyScV7vznuBQNP8nTjHL2exIs/rVmJBH+soyuAwIGI=";
   };
 
   # swig is not wrapped as Python package