diff --git a/pkgs/tools/networking/p2p/tahoe-lafs/default.nix b/pkgs/tools/networking/p2p/tahoe-lafs/default.nix
index 38adea8af8f..8796dbd076e 100644
--- a/pkgs/tools/networking/p2p/tahoe-lafs/default.nix
+++ b/pkgs/tools/networking/p2p/tahoe-lafs/default.nix
@@ -1,5 +1,5 @@
 { fetchurl, lib, unzip, buildPythonPackage, twisted, foolscap, nevow
-, simplejson, zfec, pycryptopp, pysqlite, darcsver, setuptoolsTrial
+, simplejson, zfec, pycryptopp, sqlite3, darcsver, setuptoolsTrial
 , setuptoolsDarcs, numpy, nettools, pycrypto, pyasn1, mock }:
 
 # FAILURES: The "running build_ext" phase fails to compile Twisted
@@ -8,34 +8,18 @@
 # some loss of functionality because of it.
 
 let
-  name = "tahoe-lafs-1.9.2";
+  name = "tahoe-lafs-1.10.0";
 in
 buildPythonPackage {
   inherit name;
   namePrefix = "";
 
   src = fetchurl {
-    url = "http://tahoe-lafs.org/source/tahoe-lafs/snapshots/allmydata-tahoe-1.9.2.tar.bz2";
-    sha256 = "0111gmavyrnglx10kj8z7wm7y97fyg9isv71c0gx9kq4c03knxq4";
+    url = "http://tahoe-lafs.org/source/tahoe-lafs/releases/allmydata-tahoe-1.10.0.tar.bz2";
+    sha256 = "1qng7j1vykk8zl5da9yklkljvgxfnjky58gcay6dypz91xq1cmcw";
   };
 
-  # The patch doesn't apply cleanly to the current version.
-  patches = [ /* ./test-timeout.patch */ ];
-
   configurePhase = ''
-    echo "forcing the use of \`setuptools' 0.6c9 rather than an unreleased version"
-    for i in *setup.py
-    do
-      sed -i "$i" -es'/0.6c12dev/0.6c9/g'
-    done
-
-    # `find_exe()' returns a list like ['.../bin/python'
-    # '.../bin/twistd'], which doesn't work when `twistd' is not a
-    # Python script (e.g., when it's a script produced by
-    # `wrapProgram').
-    sed -i "src/allmydata/scripts/startstop_node.py" \
-        -es"|cmd = find_exe.find_exe('twistd')|cmd = ['${twisted}/bin/twistd']|g"
-
     sed -i "src/allmydata/util/iputil.py" \
         -es"|_linux_path = '/sbin/ifconfig'|_linux_path = '${nettools}/bin/ifconfig'|g"
 
@@ -50,9 +34,9 @@ buildPythonPackage {
   buildInputs = [ unzip ]
     ++ [ numpy ]; # Some tests want this + http://tahoe-lafs.org/source/tahoe-lafs/deps/tahoe-dep-sdists/mock-0.6.0.tar.bz2
 
-  # The `backup' command requires `pysqlite'.
+  # The `backup' command requires `sqlite3'.
   propagatedBuildInputs =
-    [ twisted foolscap nevow simplejson zfec pycryptopp pysqlite
+    [ twisted foolscap nevow simplejson zfec pycryptopp sqlite3
       darcsver setuptoolsTrial setuptoolsDarcs pycrypto pyasn1 mock
     ];
 
@@ -61,11 +45,6 @@ buildPythonPackage {
 
   postInstall = ''
     # Install the documentation.
-
-    # FIXME: Inkscape segfaults when run from here.  Setting $HOME to
-    # something writable doesn't help; providing $FONTCONFIG_FILE doesn't
-    # help either.  So we just don't run `make' under `docs/'.
-
     mkdir -p "$out/share/doc/${name}"
     cp -rv "docs/"* "$out/share/doc/${name}"
     find "$out/share/doc/${name}" -name Makefile -exec rm -v {} \;
@@ -88,7 +67,7 @@ buildPythonPackage {
 
     homepage = http://allmydata.org/;
 
-    license = [ "GPLv2+" /* or */ "TGPPLv1+" ];
+    license = [ lib.licenses.gpl2Plus /* or */ "TGPPLv1+" ];
 
     maintainers = [ lib.maintainers.simons  ];
     platforms = lib.platforms.gnu;  # arbitrary choice
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f9db2276f87..655c30cf73f 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -8922,7 +8922,7 @@ let
 
   tahoelafs = callPackage ../tools/networking/p2p/tahoe-lafs {
     inherit (pythonPackages) twisted foolscap simplejson nevow zfec
-      pycryptopp pysqlite darcsver setuptoolsTrial setuptoolsDarcs
+      pycryptopp sqlite3 darcsver setuptoolsTrial setuptoolsDarcs
       numpy pyasn1 mock;
   };
 
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 331978e9c9d..cf8d970dfd0 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -1249,11 +1249,11 @@ pythonPackages = modules // import ./python-packages-generated.nix {
   });
 
   darcsver = buildPythonPackage (rec {
-    name = "darcsver-1.7.2";
+    name = "darcsver-1.7.4";
 
     src = fetchurl {
       url = "http://pypi.python.org/packages/source/d/darcsver/${name}.tar.gz";
-      md5 = "94ca7e8c9ea0f69c0f3fc6f9fc88f65a";
+      sha256 = "1yb1c3jxqvy4r3qiwvnb86qi5plw6018h15r3yk5ji3nk54qdcb6";
     };
 
     buildInputs = [ pythonPackages.mock ];
@@ -4765,11 +4765,11 @@ pythonPackages = modules // import ./python-packages-generated.nix {
 
 
   pycryptopp = buildPythonPackage (rec {
-    name = "pycryptopp-0.5.29";
+    name = "pycryptopp-0.6.0.1206569328141510525648634803928199668821045408958";
 
     src = fetchurl {
       url = "http://pypi.python.org/packages/source/p/pycryptopp/${name}.tar.gz";
-      sha256 = "d504775b73d30fb05a3237f83c4e9e1ff3312cbba90a4a23e6cbb7d32219502b";
+      sha256 = "0n90h1yg7bfvlbhnc54xb6dbqm286ykaksyg04kxlhyjgf8mhq8i";
     };
 
     # Prefer crypto++ library from the Nix store over the one that's included
@@ -5329,11 +5329,11 @@ pythonPackages = modules // import ./python-packages-generated.nix {
 
 
   pysqlite = buildPythonPackage (rec {
-    name = "pysqlite-2.5.5";
+    name = "pysqlite-2.6.3";
 
     src = fetchurl {
-      url = "http://pysqlite.googlecode.com/files/${name}.tar.gz";
-      sha256 = "ef7ca7f44893790e1a7084b10ea083770e138689406fddc7076d12d6bff4d44f";
+      url = "https://pypi.python.org/packages/source/p/pysqlite/${name}.tar.gz";
+      sha256 = "13djzgnbi71znjjyaw4nybg6smilgszcid646j5qav7mdchkb77y";
     };
 
     # Since the `.egg' file is zipped, the `NEEDED' of the `.so' files
@@ -6784,11 +6784,11 @@ pythonPackages = modules // import ./python-packages-generated.nix {
   });
 
   twisted = buildPythonPackage rec {
-    name = "twisted-10.2.0";
+    name = "twisted-13.2.0";
 
     src = fetchurl {
-      url = http://tmrc.mit.edu/mirror/twisted/Twisted/10.2/Twisted-10.2.0.tar.bz2;
-      sha256 = "110c30z622jn14yany1sxfaqj5qx20n9rc9zqacxlwma30fdcbjn";
+      url = "https://pypi.python.org/packages/source/T/Twisted/Twisted-13.2.0.tar.bz2";
+      sha256 = "1wrcqv5lvgwk2aq83qb2s2ng2vx14hbjjk2gc30cg6h1iiipal89";
     };
 
     propagatedBuildInputs = [ zope_interface ];
@@ -6809,7 +6809,7 @@ pythonPackages = modules // import ./python-packages-generated.nix {
         and licensed under the MIT license.
       '';
 
-      license = "MIT";
+      license = pkgs.lib.licenses.mit;
 
       maintainers = [ ];
     };
@@ -7222,11 +7222,11 @@ pythonPackages = modules // import ./python-packages-generated.nix {
 
 
   zfec = buildPythonPackage (rec {
-    name = "zfec-1.4.7";
+    name = "zfec-1.4.24";
 
     src = fetchurl {
       url = "http://pypi.python.org/packages/source/z/zfec/${name}.tar.gz";
-      sha256 = "3335c9054f45e2c59188400e892634b68761b29d06f3cafe525c60484902d379";
+      sha256 = "1ks94zlpy7n8sb8380gf90gx85qy0p9073wi1wngg6mccxp9xsg3";
     };
 
     buildInputs = [ setuptoolsDarcs ];