diff --git a/README.md b/README.md
index 44d0747..f186b0d 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@ designed to work with nixpkgs but also other package sets.
 - update buildGoModule's vendorHash/vendorSha256
 - update buildNpmPackage's npmDepsHash and npmConfigHook's npmDeps
 - update buildComposerProject's vendorHash
+- update buildMavenPackage's mvnHash
 - update fetchYarnDeps offlineCache output hash
 - update flake outputs (see `--flake`)
 - build and run the resulting package (see `--build`,
diff --git a/nix_update/eval.py b/nix_update/eval.py
index bb65cc1..a6ea63b 100644
--- a/nix_update/eval.py
+++ b/nix_update/eval.py
@@ -56,6 +56,7 @@ class Package:
     npm_deps: str | None
     yarn_deps: str | None
     composer_deps: str | None
+    maven_deps: str | None
     tests: list[str]
     has_update_script: bool
 
@@ -162,6 +163,7 @@ in {{
   composer_deps = pkg.composerRepository.outputHash or null;
   npm_deps = pkg.npmDeps.outputHash or null;
   yarn_deps = pkg.offlineCache.outputHash or null;
+  maven_deps = pkg.fetchedMavenDeps.outputHash or null;
   tests = builtins.attrNames (pkg.passthru.tests or {{}});
   has_update_script = {has_update_script};
   src_homepage = pkg.src.meta.homepage or null;
diff --git a/nix_update/update.py b/nix_update/update.py
index 278b012..901cd42 100644
--- a/nix_update/update.py
+++ b/nix_update/update.py
@@ -271,6 +271,11 @@ def update_yarn_deps_hash(opts: Options, filename: str, current_hash: str) -> No
     replace_hash(filename, current_hash, target_hash)
 
 
+def update_maven_deps_hash(opts: Options, filename: str, current_hash: str) -> None:
+    target_hash = nix_prefetch(opts, "fetchedMavenDeps")
+    replace_hash(filename, current_hash, target_hash)
+
+
 def update_version(
     package: Package, version: str, preference: VersionPreference, version_regex: str
 ) -> bool:
@@ -385,4 +390,7 @@ def update(opts: Options) -> Package:
         if package.yarn_deps:
             update_yarn_deps_hash(opts, package.filename, package.yarn_deps)
 
+        if package.maven_deps:
+            update_maven_deps_hash(opts, package.filename, package.maven_deps)
+
     return package
diff --git a/tests/test_maven.py b/tests/test_maven.py
new file mode 100644
index 0000000..d997bf2
--- /dev/null
+++ b/tests/test_maven.py
@@ -0,0 +1,27 @@
+import subprocess
+
+import conftest
+
+from nix_update.options import Options
+from nix_update.update import update
+
+
+def test_update(helpers: conftest.Helpers) -> None:
+    with helpers.testpkgs() as path:
+        opts = Options(attribute="maven", import_path=str(path))
+        update(opts)
+        version = subprocess.run(
+            [
+                "nix",
+                "eval",
+                "--raw",
+                "--extra-experimental-features",
+                "nix-command",
+                "-f",
+                path,
+                "maven.version",
+            ],
+            text=True,
+            stdout=subprocess.PIPE,
+        ).stdout.strip()
+        assert tuple(map(int, version.split("."))) > (3, 3, 0)
diff --git a/tests/testpkgs/default.nix b/tests/testpkgs/default.nix
index 11003da..f641e8d 100644
--- a/tests/testpkgs/default.nix
+++ b/tests/testpkgs/default.nix
@@ -13,4 +13,5 @@
   sourcehut = pkgs.python3.pkgs.callPackage ./sourcehut.nix { };
   savanna = pkgs.python3.pkgs.callPackage ./savanna.nix { };
   npm = pkgs.callPackage ./npm.nix { };
+  maven = pkgs.callPackage ./maven.nix { };
 }
diff --git a/tests/testpkgs/maven.nix b/tests/testpkgs/maven.nix
new file mode 100644
index 0000000..b4d7195
--- /dev/null
+++ b/tests/testpkgs/maven.nix
@@ -0,0 +1,16 @@
+{ maven, fetchFromGitHub }:
+
+maven.buildMavenPackage rec {
+  pname = "mariadb-connector-java";
+  version = "3.3.0";
+
+  src = fetchFromGitHub {
+    owner = "mariadb-corporation";
+    repo = "mariadb-connector-j";
+    rev = "refs/tags/${version}";
+    hash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
+  };
+
+  mvnHash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=";
+  mvnParameters = "-DskipTests";
+}