diff --git a/pkgs/applications/editors/emacs/at-fdcwd.patch b/pkgs/applications/editors/emacs/at-fdcwd.patch
deleted file mode 100644
index 2d8099b73736..000000000000
--- a/pkgs/applications/editors/emacs/at-fdcwd.patch
+++ /dev/null
@@ -1,15 +0,0 @@
-diff --git a/lib/careadlinkat.h b/lib/careadlinkat.h
-index 84ede3e..8e8f42e 100644
---- a/lib/careadlinkat.h
-+++ b/lib/careadlinkat.h
-@@ -23,6 +23,10 @@
- #include <fcntl.h>
- #include <unistd.h>
- 
-+#ifndef AT_FDCWD
-+#define AT_FDCWD -2
-+#endif
-+
- struct allocator;
- 
- /* Assuming the current directory is FD, get the symbolic link value
diff --git a/pkgs/applications/editors/emacs/clean-env.patch b/pkgs/applications/editors/emacs/clean-env.patch
index f80efeeef706..7b4cb9d52667 100644
--- a/pkgs/applications/editors/emacs/clean-env.patch
+++ b/pkgs/applications/editors/emacs/clean-env.patch
@@ -8,8 +8,8 @@ diff -ru -x '*~' emacs-25.3/src/Makefile.in emacs-25.3-new/src/Makefile.in
  ifeq ($(CANNOT_DUMP),yes)
  	ln -f temacs$(EXEEXT) $@
  else
--	LC_ALL=C $(RUN_TEMACS) -batch -l loadup dump
-+	env -i LC_ALL=C $(RUN_TEMACS) -batch -l loadup dump
+-	LC_ALL=C $(RUN_TEMACS) -batch $(BUILD_DETAILS) -l loadup dump
++	env -i LC_ALL=C $(RUN_TEMACS) -batch $(BUILD_DETAILS) -l loadup dump
    ifneq ($(PAXCTL_dumped),)
  	$(PAXCTL_dumped) $@
    endif
diff --git a/pkgs/applications/editors/emacs/default.nix b/pkgs/applications/editors/emacs/default.nix
index ba243629cc3e..b82f97e445f6 100644
--- a/pkgs/applications/editors/emacs/default.nix
+++ b/pkgs/applications/editors/emacs/default.nix
@@ -26,28 +26,18 @@ let
 in
 stdenv.mkDerivation rec {
   name = "emacs-${version}${versionModifier}";
-  version = "25.3";
+  version = "26.1";
   versionModifier = "";
 
   src = fetchurl {
     url = "mirror://gnu/emacs/${name}.tar.xz";
-    sha256 = "02y00y9q42g1iqgz5qhmsja75hwxd88yrn9zp14lanay0zkwafi5";
+    sha256 = "0b6k1wq44rc8gkvxhi1bbjxbz3cwg29qbq8mklq2az6p1hjgrx0w";
   };
 
   enableParallelBuilding = true;
 
   patches = [
     ./clean-env.patch
-  ] ++ lib.optionals stdenv.isDarwin [
-    ./at-fdcwd.patch
-
-    # Backport of the fix to
-    # https://lists.gnu.org/archive/html/bug-gnu-emacs/2017-04/msg00201.html
-    # Should be removed when switching to Emacs 26.1
-    (fetchurl {
-      url = "https://gist.githubusercontent.com/aaronjensen/f45894ddf431ecbff78b1bcf533d3e6b/raw/6a5cd7f57341aba673234348d8b0d2e776f86719/Emacs-25-OS-X-use-vfork.patch";
-      sha256 = "1nlsxiaynswqhy99jf4mw9x0sndhwcrwy8713kq1l3xqv9dbrzgj";
-    })
   ];
 
   nativeBuildInputs = [ pkgconfig ]