diff --git a/CHANGELOG.md b/CHANGELOG.md
index 98d5f7380..0528b1a46 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## Unreleased
+### Added
+- `BaseConversationMemory.prompt_driver` for use with autopruning. 
 
 ### Fixed
 - Parsing streaming response with some OpenAi compatible services.
diff --git a/griptape/memory/structure/base_conversation_memory.py b/griptape/memory/structure/base_conversation_memory.py
index 44c053dc4..15d0a9e99 100644
--- a/griptape/memory/structure/base_conversation_memory.py
+++ b/griptape/memory/structure/base_conversation_memory.py
@@ -10,9 +10,8 @@
 from griptape.mixins import SerializableMixin
 
 if TYPE_CHECKING:
-    from griptape.drivers import BaseConversationMemoryDriver
+    from griptape.drivers import BaseConversationMemoryDriver, BasePromptDriver
     from griptape.memory.structure import Run
-    from griptape.structures import Structure
 
 
 @define
@@ -20,8 +19,10 @@ class BaseConversationMemory(SerializableMixin, ABC):
     driver: Optional[BaseConversationMemoryDriver] = field(
         default=Factory(lambda: Defaults.drivers_config.conversation_memory_driver), kw_only=True
     )
+    prompt_driver: BasePromptDriver = field(
+        default=Factory(lambda: Defaults.drivers_config.prompt_driver), kw_only=True
+    )
     runs: list[Run] = field(factory=list, kw_only=True, metadata={"serializable": True})
-    structure: Structure = field(init=False)
     autoload: bool = field(default=True, kw_only=True)
     autoprune: bool = field(default=True, kw_only=True)
     max_runs: Optional[int] = field(default=None, kw_only=True, metadata={"serializable": True})
@@ -65,9 +66,8 @@ def add_to_prompt_stack(self, prompt_stack: PromptStack, index: Optional[int] =
         """
         num_runs_to_fit_in_prompt = len(self.runs)
 
-        if self.autoprune and hasattr(self, "structure"):
+        if self.autoprune:
             should_prune = True
-            prompt_driver = Defaults.drivers_config.prompt_driver
             temp_stack = PromptStack()
 
             # Try to determine how many Conversation Memory runs we can
@@ -82,8 +82,8 @@ def add_to_prompt_stack(self, prompt_stack: PromptStack, index: Optional[int] =
                 temp_stack.messages.extend(memory_inputs)
 
                 # Convert the Prompt Stack into tokens left.
-                tokens_left = prompt_driver.tokenizer.count_input_tokens_left(
-                    prompt_driver.prompt_stack_to_string(temp_stack),
+                tokens_left = self.prompt_driver.tokenizer.count_input_tokens_left(
+                    self.prompt_driver.prompt_stack_to_string(temp_stack),
                 )
                 if tokens_left > 0:
                     # There are still tokens left, no need to prune.
diff --git a/griptape/structures/structure.py b/griptape/structures/structure.py
index 0572e289d..63ba02373 100644
--- a/griptape/structures/structure.py
+++ b/griptape/structures/structure.py
@@ -54,9 +54,6 @@ def validate_rules(self, _: Attribute, rules: list[Rule]) -> None:
             raise ValueError("can't have both rules and rulesets specified")
 
     def __attrs_post_init__(self) -> None:
-        if self.conversation_memory is not None:
-            self.conversation_memory.structure = self
-
         tasks = self.tasks.copy()
         self.tasks.clear()
         self.add_tasks(*tasks)
diff --git a/poetry.lock b/poetry.lock
index 32c3964ef..fc0118d0a 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -265,22 +265,22 @@ files = [
 
 [[package]]
 name = "attrs"
-version = "23.2.0"
+version = "24.2.0"
 description = "Classes Without Boilerplate"
 optional = false
 python-versions = ">=3.7"
 files = [
-    {file = "attrs-23.2.0-py3-none-any.whl", hash = "sha256:99b87a485a5820b23b879f04c2305b44b951b502fd64be915879d77a7e8fc6f1"},
-    {file = "attrs-23.2.0.tar.gz", hash = "sha256:935dc3b529c262f6cf76e50877d35a4bd3c1de194fd41f47a2b7ae8f19971f30"},
+    {file = "attrs-24.2.0-py3-none-any.whl", hash = "sha256:81921eb96de3191c8258c199618104dd27ac608d9366f5e35d011eae1867ede2"},
+    {file = "attrs-24.2.0.tar.gz", hash = "sha256:5cfb1b9148b5b086569baec03f20d7b6bf3bcacc9a42bebf87ffaaca362f6346"},
 ]
 
 [package.extras]
-cov = ["attrs[tests]", "coverage[toml] (>=5.3)"]
-dev = ["attrs[tests]", "pre-commit"]
-docs = ["furo", "myst-parser", "sphinx", "sphinx-notfound-page", "sphinxcontrib-towncrier", "towncrier", "zope-interface"]
-tests = ["attrs[tests-no-zope]", "zope-interface"]
-tests-mypy = ["mypy (>=1.6)", "pytest-mypy-plugins"]
-tests-no-zope = ["attrs[tests-mypy]", "cloudpickle", "hypothesis", "pympler", "pytest (>=4.3.0)", "pytest-xdist[psutil]"]
+benchmark = ["cloudpickle", "hypothesis", "mypy (>=1.11.1)", "pympler", "pytest (>=4.3.0)", "pytest-codspeed", "pytest-mypy-plugins", "pytest-xdist[psutil]"]
+cov = ["cloudpickle", "coverage[toml] (>=5.3)", "hypothesis", "mypy (>=1.11.1)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-xdist[psutil]"]
+dev = ["cloudpickle", "hypothesis", "mypy (>=1.11.1)", "pre-commit", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-xdist[psutil]"]
+docs = ["cogapp", "furo", "myst-parser", "sphinx", "sphinx-notfound-page", "sphinxcontrib-towncrier", "towncrier (<24.7)"]
+tests = ["cloudpickle", "hypothesis", "mypy (>=1.11.1)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-xdist[psutil]"]
+tests-mypy = ["mypy (>=1.11.1)", "pytest-mypy-plugins"]
 
 [[package]]
 name = "babel"
@@ -3669,6 +3669,7 @@ description = "Nvidia JIT LTO Library"
 optional = true
 python-versions = ">=3"
 files = [
+    {file = "nvidia_nvjitlink_cu12-12.6.20-py3-none-manylinux2014_aarch64.whl", hash = "sha256:84fb38465a5bc7c70cbc320cfd0963eb302ee25a5e939e9f512bbba55b6072fb"},
     {file = "nvidia_nvjitlink_cu12-12.6.20-py3-none-manylinux2014_x86_64.whl", hash = "sha256:562ab97ea2c23164823b2a89cb328d01d45cb99634b8c65fe7cd60d14562bd79"},
     {file = "nvidia_nvjitlink_cu12-12.6.20-py3-none-win_amd64.whl", hash = "sha256:ed3c43a17f37b0c922a919203d2d36cbef24d41cc3e6b625182f8b58203644f6"},
 ]
@@ -6988,4 +6989,4 @@ loaders-sql = ["sqlalchemy"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "ee23a885217a5285e3a33cac221c55f011cd4ce428b33cd8abfbdac38a27a638"
+content-hash = "d368587717dd8496f0db30403afa59ca6ff9e0b4e2d747f2b4c703e832d904c3"
diff --git a/pyproject.toml b/pyproject.toml
index 6c50013ad..e02c08b6e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ packages = [
 [tool.poetry.dependencies]
 python = "^3.9"
 openai = "^1.1.1"
-attrs = "^23.2.0"
+attrs = "^24.2.0"
 jinja2 = "^3.1.4"
 marshmallow = "^3.21.3"
 marshmallow-enum = "^1.5.1"