diff --git a/Cargo.lock b/Cargo.lock
index c1a3dade..f2b4db8c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -103,7 +103,7 @@ version = "1.0.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e28923312444cdd728e4738b3f9c9cac739500909bb3d3c94b43551b16517648"
 dependencies = [
- "windows-sys 0.52.0",
+ "windows-sys",
 ]
 
 [[package]]
@@ -113,7 +113,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1cd54b81ec8d6180e24654d0b371ad22fc3dd083b6ff8ba325b72e00c87660a7"
 dependencies = [
  "anstyle",
- "windows-sys 0.52.0",
+ "windows-sys",
 ]
 
 [[package]]
@@ -294,9 +294,9 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
 name = "bytes"
-version = "1.5.0"
+version = "1.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2bd12c1caf447e69cd4528f47f94d203fd2582878ecb9e9465484c4148a8223"
+checksum = "514de17de45fdb8dc022b1a7975556c53c86f9f0aa5f534b98977b171857c2c9"
 
 [[package]]
 name = "bzip2"
@@ -368,9 +368,9 @@ dependencies = [
 
 [[package]]
 name = "clang-sys"
-version = "1.7.0"
+version = "1.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67523a3b4be3ce1989d607a828d036249522dd9c1c8de7f4dd2dae43a37369d1"
+checksum = "0b023947811758c97c59bf9d1c188fd619ad4718dcaa767947df1cadb14f39f4"
 dependencies = [
  "glob",
  "libc",
@@ -528,7 +528,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a258e46cdc063eb8519c00b9fc845fc47bcfca4130e2f08e88665ceda8474245"
 dependencies = [
  "libc",
- "windows-sys 0.52.0",
+ "windows-sys",
 ]
 
 [[package]]
@@ -627,9 +627,9 @@ checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
 
 [[package]]
 name = "histogram"
-version = "0.9.1"
+version = "0.10.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b634390eb8a63662e127836d4e2f26d7ae930600d4e05ee0fd85a009eeb1175"
+checksum = "cfe0e7d1b57c929216545b6aa17aff4798bc432b7065ac16a3e03b8dd63d8643"
 dependencies = [
  "thiserror",
 ]
@@ -717,6 +717,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.10"
@@ -752,12 +761,12 @@ checksum = "9c198f91728a82281a64e1f4f9eeb25d82cb32a5de251c6bd1b5154d63a8e7bd"
 
 [[package]]
 name = "libloading"
-version = "0.8.1"
+version = "0.8.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c571b676ddfc9a8c12f1f3d3085a7b163966a8fd8098a90640953ce5f6170161"
+checksum = "0c2a198fb6b0eada2a8df47933734e6d35d350665a33a3593d7164fa52c75c19"
 dependencies = [
  "cfg-if",
- "windows-sys 0.48.0",
+ "windows-targets 0.48.5",
 ]
 
 [[package]]
@@ -784,9 +793,9 @@ dependencies = [
 
 [[package]]
 name = "libz-sys"
-version = "1.1.15"
+version = "1.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "037731f5d3aaa87a5675e895b63ddff1a87624bc29f77004ea829809654e48f6"
+checksum = "5e143b5e666b2695d28f6bca6497720813f699c9602dd7f5cac91008b8ada7f9"
 dependencies = [
  "cc",
  "pkg-config",
@@ -997,9 +1006,9 @@ dependencies = [
 
 [[package]]
 name = "num-iter"
-version = "0.1.44"
+version = "0.1.45"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d869c01cc0c455284163fd0092f1f93835385ccab5a98a0dcc497b2f8bf055a9"
+checksum = "1429034a0490724d0075ebb2bc9e875d6503c3cf69e235a8941aa757d83ef5bf"
 dependencies = [
  "autocfg",
  "num-integer",
@@ -1035,9 +1044,9 @@ checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
 [[package]]
 name = "ouroboros"
-version = "0.18.3"
+version = "0.18.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97b7be5a8a3462b752f4be3ff2b2bf2f7f1d00834902e46be2a4d68b87b0573c"
+checksum = "944fa20996a25aded6b4795c6d63f10014a7a83f8be9828a11860b08c5fc4a67"
 dependencies = [
  "aliasable",
  "ouroboros_macro",
@@ -1046,9 +1055,9 @@ dependencies = [
 
 [[package]]
 name = "ouroboros_macro"
-version = "0.18.3"
+version = "0.18.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b645dcde5f119c2c454a92d0dfa271a2a3b205da92e4292a68ead4bdbfde1f33"
+checksum = "39b0deead1528fd0e5947a8546a9642a9777c25f6e1e26f34c97b204bbb465bd"
 dependencies = [
  "heck",
  "itertools 0.12.1",
@@ -1169,9 +1178,9 @@ dependencies = [
 
 [[package]]
 name = "prettyplease"
-version = "0.2.16"
+version = "0.2.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a41cf62165e97c7f814d2221421dbb9afcbcdb0a88068e5ea206e19951c2cbb5"
+checksum = "8d3928fb5db768cb86f891ff014f0144589297e3c6a1aba6ed7cecfdace270c7"
 dependencies = [
  "proc-macro2",
  "syn 2.0.52",
@@ -1505,9 +1514,9 @@ dependencies = [
 
 [[package]]
 name = "roaring"
-version = "0.10.3"
+version = "0.10.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1c77081a55300e016cb86f2864415b7518741879db925b8d488a0ee0d2da6bf"
+checksum = "7699249cc2c7d71939f30868f47e9d7add0bdc030d90ee10bfd16887ff8bb1c8"
 dependencies = [
  "bytemuck",
  "byteorder",
@@ -1545,7 +1554,7 @@ dependencies = [
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.52.0",
+ "windows-sys",
 ]
 
 [[package]]
@@ -1676,9 +1685,9 @@ checksum = "bceb57dc07c92cdae60f5b27b3fa92ecaaa42fe36c55e22dbfb0b44893e0b1f7"
 
 [[package]]
 name = "sourmash"
-version = "0.13.1"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "084cf7e17f32408757d20fea1b6c09ed3dafdac4b894302e29906b51e0eac739"
+checksum = "c9568fdb26601e8230d5de117d1816c8155edcf059b2c5e770c3605313a78536"
 dependencies = [
  "az",
  "byteorder",
@@ -1692,7 +1701,7 @@ dependencies = [
  "getrandom",
  "getset",
  "histogram",
- "itertools 0.12.1",
+ "itertools 0.13.0",
  "js-sys",
  "log",
  "md5",
@@ -1758,9 +1767,9 @@ checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
 [[package]]
 name = "statrs"
-version = "0.16.0"
+version = "0.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d08e5e1748192713cc281da8b16924fb46be7b0c2431854eadc785823e5696e"
+checksum = "b35a062dbadac17a42e0fc64c27f419b25d6fae98572eb43c8814c9e873d7721"
 dependencies = [
  "approx",
  "lazy_static",
@@ -1821,7 +1830,7 @@ dependencies = [
  "cfg-if",
  "fastrand",
  "rustix",
- "windows-sys 0.52.0",
+ "windows-sys",
 ]
 
 [[package]]
@@ -1922,9 +1931,9 @@ checksum = "711b9620af191e0cdc7468a8d14e709c3dcdb115b36f838e601583af800a370a"
 
 [[package]]
 name = "uuid"
-version = "1.7.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f00cc9702ca12d3c81455259621e676d0f7251cec66a21e98fe2e9a37db93b2a"
+checksum = "a183cf7feeba97b4dd1c0d46788634f6221d87fa961b305bed08c851829efcc0"
 
 [[package]]
 name = "vcpkg"
@@ -2053,15 +2062,6 @@ dependencies = [
  "windows-targets 0.52.4",
 ]
 
-[[package]]
-name = "windows-sys"
-version = "0.48.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
-dependencies = [
- "windows-targets 0.48.5",
-]
-
 [[package]]
 name = "windows-sys"
 version = "0.52.0"
diff --git a/Cargo.toml b/Cargo.toml
index c956931b..bb822042 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ crate-type = ["cdylib"]
 pyo3 = { version = "0.21.2", features = ["extension-module", "anyhow"] }
 rayon = "1.10.0"
 serde = { version = "1.0.203", features = ["derive"] }
-sourmash = { version = "0.13.1", features = ["branchwater"] }
+sourmash = { version = "0.14.0", features = ["branchwater"] }
 serde_json = "1.0.117"
 niffler = "2.4.0"
 log = "0.4.14"
diff --git a/pyproject.toml b/pyproject.toml
index bca04a26..68535571 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ classifiers = [
     "Programming Language :: Python :: Implementation :: CPython",
     "Programming Language :: Python :: Implementation :: PyPy",
     ]
-dependencies = ["sourmash>=4.8.5,<5"]
+dependencies = ["sourmash>=4.8.8,<5"]
 
 authors = [
   { name="N. Tessa Pierce-Ward", orcid="0000-0002-2942-5331" },
diff --git a/src/python/tests/test_multigather.py b/src/python/tests/test_multigather.py
index 7c48e05b..824e4c52 100644
--- a/src/python/tests/test_multigather.py
+++ b/src/python/tests/test_multigather.py
@@ -1015,7 +1015,7 @@ def test_indexed_full_output(runtmp):
     # check a few columns
     average_ani = set(df['average_containment_ani'])
     avg_ani = set([round(x, 4) for x in average_ani])
-    assert avg_ani == {0.8602, 0.8504, 0.8361}
+    assert avg_ani == {0.8359, 0.8502, 0.8602}
 
     f_unique_weighted = set(df['f_unique_weighted'])
     f_unique_weighted = set([round(x, 4) for x in f_unique_weighted])