diff --git a/pkgs/development/python-modules/breezy/Cargo.lock b/pkgs/development/python-modules/breezy/Cargo.lock
index 0c70fa49f4ee..e2f6aba371a6 100644
--- a/pkgs/development/python-modules/breezy/Cargo.lock
+++ b/pkgs/development/python-modules/breezy/Cargo.lock
@@ -4,18 +4,18 @@ version = 3
 
 [[package]]
 name = "aho-corasick"
-version = "1.1.2"
+version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2969dcb958b36655471fc61f7e416fa76033bdd4bfed0678d8fee1e2d07a1f0"
+checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
 dependencies = [
  "memchr",
 ]
 
 [[package]]
 name = "autocfg"
-version = "1.1.0"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+checksum = "f1fdabc7756949593fe60f30ec81974b613357de856987752631dea1e3394c80"
 
 [[package]]
 name = "bitflags"
@@ -25,7 +25,7 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "breezy"
-version = "3.3.5"
+version = "3.3.6"
 dependencies = [
  "pyo3",
 ]
@@ -44,9 +44,9 @@ checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
 [[package]]
 name = "indoc"
-version = "2.0.4"
+version = "2.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e186cfbae8084e513daff4240b4797e342f988cecda4fb6c939150f96315fd8"
+checksum = "b248f5224d1d606005e02c97f5aa4e88eeb230488bcc03bc9ca4d7991399f2b5"
 
 [[package]]
 name = "lazy_static"
@@ -56,9 +56,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.152"
+version = "0.2.153"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "13e3bf6590cbc649f4d1a3eefc9d5d6eb746f5200ffb04e5e142700b8faa56e7"
+checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
 [[package]]
 name = "lock_api"
@@ -72,15 +72,15 @@ dependencies = [
 
 [[package]]
 name = "memchr"
-version = "2.7.1"
+version = "2.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "523dc4f511e55ab87b694dc30d0f820d60906ef06413f93d4d7a1385599cc149"
+checksum = "6c8640c5d730cb13ebd907d8d04b52f55ac9a2eec55b440c8892f40d56c76c1d"
 
 [[package]]
 name = "memoffset"
-version = "0.9.0"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a634b1c61a95585bd15607c6ab0c4e5b226e695ff2800ba0cdccddf208c406c"
+checksum = "488016bfae457b036d996092f6cb448677611ce4449e970ceaf42695203f218a"
 dependencies = [
  "autocfg",
 ]
@@ -115,25 +115,32 @@ dependencies = [
 ]
 
 [[package]]
-name = "proc-macro2"
-version = "1.0.78"
+name = "portable-atomic"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2422ad645d89c99f8f3e6b88a9fdeca7fabeac836b1002371c4367c8f984aae"
+checksum = "7170ef9988bc169ba16dd36a7fa041e5c4cbeb6a35b76d4c03daded371eae7c0"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.79"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e835ff2298f5721608eb1a980ecaee1aef2c132bf95ecc026a11b7bf3c01c02e"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "pyo3"
-version = "0.20.2"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a89dc7a5850d0e983be1ec2a463a171d20990487c3cfcd68b5363f1ee3d6fe0"
+checksum = "a7a8b1990bd018761768d5e608a13df8bd1ac5f678456e0f301bb93e5f3ea16b"
 dependencies = [
  "cfg-if",
  "indoc",
  "libc",
  "memoffset",
  "parking_lot",
+ "portable-atomic",
  "pyo3-build-config",
  "pyo3-ffi",
  "pyo3-macros",
@@ -142,9 +149,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-build-config"
-version = "0.20.2"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07426f0d8fe5a601f26293f300afd1a7b1ed5e78b2a705870c5f30893c5163be"
+checksum = "650dca34d463b6cdbdb02b1d71bfd6eb6b6816afc708faebb3bac1380ff4aef7"
 dependencies = [
  "once_cell",
  "target-lexicon",
@@ -152,9 +159,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-ffi"
-version = "0.20.2"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dbb7dec17e17766b46bca4f1a4215a85006b4c2ecde122076c562dd058da6cf1"
+checksum = "09a7da8fc04a8a2084909b59f29e1b8474decac98b951d77b80b26dc45f046ad"
 dependencies = [
  "libc",
  "pyo3-build-config",
@@ -162,9 +169,9 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros"
-version = "0.20.2"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05f738b4e40d50b5711957f142878cfa0f28e054aa0ebdfc3fd137a843f74ed3"
+checksum = "4b8a199fce11ebb28e3569387228836ea98110e43a804a530a9fd83ade36d513"
 dependencies = [
  "proc-macro2",
  "pyo3-macros-backend",
@@ -174,12 +181,13 @@ dependencies = [
 
 [[package]]
 name = "pyo3-macros-backend"
-version = "0.20.2"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fc910d4851847827daf9d6cdd4a823fbdaab5b8818325c5e97a86da79e8881f"
+checksum = "93fbbfd7eb553d10036513cb122b888dcd362a945a00b06c165f2ab480d4cc3b"
 dependencies = [
  "heck",
  "proc-macro2",
+ "pyo3-build-config",
  "quote",
  "syn",
 ]
@@ -204,9 +212,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.10.3"
+version = "1.10.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b62dbe01f0b06f9d8dc7d49e05a0785f153b00b2c227856282f671e0318c9b15"
+checksum = "c117dbdfde9c8308975b6a18d71f3f385c89461f7b3fb054288ecf2a2058ba4c"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -216,9 +224,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.4.5"
+version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5bb987efffd3c6d0d8f5f89510bb458559eab11e4f869acb20bf845e016259cd"
+checksum = "86b83b8b9847f9bf95ef68afb0b8e6cdb80f498442f5179a29fad448fcc1eaea"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -227,13 +235,13 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.8.2"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
+checksum = "adad44e29e4c806119491a7f06f03de4d1af22c3a680dd47f1e6e179439d1f56"
 
 [[package]]
 name = "rio-py"
-version = "3.3.5"
+version = "3.3.6"
 dependencies = [
  "lazy_static",
  "pyo3",
@@ -248,15 +256,15 @@ checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
 [[package]]
 name = "smallvec"
-version = "1.13.1"
+version = "1.13.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6ecd384b10a64542d77071bd64bd7b231f4ed5940fba55e98c3de13824cf3d7"
+checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
 
 [[package]]
 name = "syn"
-version = "2.0.48"
+version = "2.0.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f3531638e407dfc0814761abb7c00a5b54992b849452a0646b7f65c9f770f3f"
+checksum = "11a6ae1e52eb25aab8f3fb9fca13be982a373b8f1157ca14b897a825ba4a2d35"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -265,9 +273,9 @@ dependencies = [
 
 [[package]]
 name = "target-lexicon"
-version = "0.12.13"
+version = "0.12.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "69758bda2e78f098e4ccb393021a0963bb3442eac05f135c30f61b7370bbafae"
+checksum = "e1fc403891a21bcfb7c37834ba66a547a8f402146eba7265b5a6d88059c9ff2f"
 
 [[package]]
 name = "unicode-ident"
diff --git a/pkgs/development/python-modules/breezy/default.nix b/pkgs/development/python-modules/breezy/default.nix
index 9861218d13c7..82e966602939 100644
--- a/pkgs/development/python-modules/breezy/default.nix
+++ b/pkgs/development/python-modules/breezy/default.nix
@@ -13,6 +13,7 @@
 , merge3
 , patiencediff
 , pyyaml
+, tzlocal
 , urllib3
 , breezy
 , launchpadlib
@@ -28,7 +29,7 @@
 
 buildPythonPackage rec {
   pname = "breezy";
-  version = "3.3.5";
+  version = "3.3.6";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
@@ -37,7 +38,7 @@ buildPythonPackage rec {
     owner = "breezy-team";
     repo = "breezy";
     rev = "brz-${version}";
-    hash = "sha256-z8NKb8gFgA6dufM12jnZIZ6b1ZMZRzFA3w7t7gECEts=";
+    hash = "sha256-d2TZPFqKRI4sf6R2X/pczqN+LcfpTmP1W+wkDlKX6HE=";
   };
 
   cargoDeps = rustPlatform.importCargoLock {
@@ -67,6 +68,7 @@ buildPythonPackage rec {
     merge3
     patiencediff
     pyyaml
+    tzlocal
     urllib3
   ] ++ passthru.optional-dependencies.launchpad
     ++ passthru.optional-dependencies.fastimport