diff --git a/boa/contracts/vyper/compiler_utils.py b/boa/contracts/vyper/compiler_utils.py
index f73cb784..3711d426 100644
--- a/boa/contracts/vyper/compiler_utils.py
+++ b/boa/contracts/vyper/compiler_utils.py
@@ -1,4 +1,8 @@
 import textwrap
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    pass
 
 import vyper.ast as vy_ast
 import vyper.semantics.analysis as analysis
diff --git a/boa/interpret.py b/boa/interpret.py
index e4707347..40520af8 100644
--- a/boa/interpret.py
+++ b/boa/interpret.py
@@ -20,7 +20,7 @@
     CompilerInput,
     FileInput,
     FilesystemInputBundle,
-    ZipInputBundle,
+    JSONInputBundle,
 )
 from vyper.compiler.phases import CompilerData
 from vyper.compiler.settings import Settings, anchor_settings, merge_settings
@@ -165,9 +165,6 @@ def get_compiler_data():
             # force compilation to happen so DiskCache will cache the compiled artifact:
             _ = ret.bytecode, ret.bytecode_runtime
 
-        if isinstance(ret.input_bundle, ZipInputBundle):
-            # workaround for `cannot pickle '_thread.RLock' object`
-            ret.input_bundle.archive._lock = None
         return ret
 
     assert isinstance(deployer, type) or deployer is None
@@ -326,39 +323,51 @@ def _create_compiler_data(
 def _create_archive_compiler_data(
     zip_contents: str | bytes, settings: Settings
 ) -> CompilerData:
-    if isinstance(zip_contents, str):
-        zip_contents = zip_contents.encode()
-    try:
-        buf = BytesIO(zip_contents)
-        archive = ZipFile(buf, mode="r")
-    except BadZipFile as e1:
-        try:
-            # don't validate base64 to allow for newlines
-            zip_contents = b64decode(zip_contents, validate=False)
-            buf = BytesIO(zip_contents)
-            archive = ZipFile(buf, mode="r")
-        except (BadZipFile, binascii.Error):
-            raise NotZipInput() from e1
+    with _open_zip(zip_contents) as archive:
+        # read the whole zip into memory so it can be serialized to the cache
+        files = {name: archive.read(name).decode() for name in archive.namelist()}
 
-    targets = archive.read("MANIFEST/compilation_targets").decode().splitlines()
+    targets = files["MANIFEST/compilation_targets"].splitlines()
     if len(targets) != 1:
         raise BadArchive("Multiple compilation targets not supported!")
 
-    input_bundle = ZipInputBundle(archive)
+    input_bundle = JSONInputBundle(
+        input_json={
+            PurePath(name): {"content": content} for name, content in files.items()
+        },
+        search_paths=[PurePath(p) for p in files["MANIFEST/searchpaths"].splitlines()],
+    )
+
     main_path = PurePath(targets[0])
-    archive_settings_txt = archive.read("MANIFEST/settings.json").decode()
     file = input_bundle.load_file(main_path)
     assert isinstance(file, FileInput)  # help mypy
+    settings_json = json.loads(files["MANIFEST/settings.json"])
     settings = merge_settings(
         settings,
-        Settings.from_dict(json.loads(archive_settings_txt)),
+        Settings.from_dict(settings_json),
         lhs_source="command line",
         rhs_source="archive settings",
     )
-    integrity_sum = archive.read("MANIFEST/integrity").decode().strip()
+    integrity_sum = files["MANIFEST/integrity"].strip()
     return CompilerData(file, input_bundle, settings, integrity_sum)
 
 
+def _open_zip(zip_contents):
+    if isinstance(zip_contents, str):
+        zip_contents = zip_contents.encode()
+    try:
+        buf = BytesIO(zip_contents)
+        return ZipFile(buf, mode="r")
+    except BadZipFile as e1:
+        try:
+            # don't validate base64 to allow for newlines
+            zip_contents = b64decode(zip_contents, validate=False)
+            buf = BytesIO(zip_contents)
+            return ZipFile(buf, mode="r")
+        except (BadZipFile, binascii.Error):
+            raise NotZipInput() from e1
+
+
 def from_etherscan(
     address: Any, name: str = None, uri: str = None, api_key: str = None
 ):