diff --git a/CHANGELOG.md b/CHANGELOG.md
index f7818b3..87e8835 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,7 @@
 # 0.7.1
 
+* Use mboworks_bzl 0.8.0 runfiles keys for helper executables and tool manifests.
+
 * Derive consumer fixture versions from the module and automate the README
   version update during release preparation. Test development/release version
   consistency and post-release version bumps.
diff --git a/MODULE.bazel b/MODULE.bazel
index 04f8bd8..ebfea69 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -21,6 +21,7 @@ module(
 )
 
 bazel_dep(name = "bazel_skylib", version = "1.9.2")
+bazel_dep(name = "mboworks_bzl", version = "0.8.0")
 bazel_dep(name = "platforms", version = "1.1.0")
 bazel_dep(name = "rules_shell", version = "0.8.0")
 
diff --git a/bashtest/BUILD.bazel b/bashtest/BUILD.bazel
index a871cc6..cb98a0a 100644
--- a/bashtest/BUILD.bazel
+++ b/bashtest/BUILD.bazel
@@ -25,6 +25,7 @@ bzl_library(
         "tools.bzl",
         "windows.bzl",
     ],
+    deps = ["@mboworks_bzl//bzl/runfiles"],
 )
 
 sh_library(
diff --git a/bashtest/tools.bzl b/bashtest/tools.bzl
index 31d4fcb..ad86cec 100644
--- a/bashtest/tools.bzl
+++ b/bashtest/tools.bzl
@@ -15,10 +15,7 @@
 
 """Bind helper executables to the execution platform of the actual test action."""
 
-def _rlocation_path(ctx, file):
-    if file.short_path.startswith("../"):
-        return file.short_path[3:]
-    return ctx.workspace_name + "/" + file.short_path
+load("@mboworks_bzl//bzl/runfiles:runfiles.bzl", _runfiles = "runfiles")
 
 def _validate_name(name):
     letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_"
@@ -54,7 +51,7 @@ def _tools_test_impl(ctx):
             if name in names or name in environment.environment or name in environment.inherited_environment:
                 fail("tool environment variable is already defined: " + name)
             names.append(name)
-            entries.append(name + "\t" + _rlocation_path(ctx, executable) + "\n")
+            entries.append(name + "\t" + _runfiles.key(ctx, executable) + "\n")
         tool_files.append(executable)
         tool_runfiles.extend([info.default_runfiles, info.data_runfiles])
     manifest = ctx.actions.declare_file(ctx.label.name + ".tools")
@@ -68,7 +65,7 @@ def _tools_test_impl(ctx):
     return [
         DefaultInfo(executable = executable, runfiles = runfiles),
         RunEnvironmentInfo(
-            environment = environment.environment | ({"_BASHTEST_TOOLS_MANIFEST": _rlocation_path(ctx, manifest)} if ctx.attr.tools else {}),
+            environment = environment.environment | ({"_BASHTEST_TOOLS_MANIFEST": _runfiles.key(ctx, manifest)} if ctx.attr.tools else {}),
             inherited_environment = environment.inherited_environment,
         ),
         coverage_common.instrumented_files_info(ctx, dependency_attributes = ["runner"]),