diff --git a/.github/workflows/meltano-run.yml b/.github/workflows/meltano-run.yml
index bd33e17..acde957 100644
--- a/.github/workflows/meltano-run.yml
+++ b/.github/workflows/meltano-run.yml
@@ -28,6 +28,11 @@ jobs:
           output_db: nested.db
           target_table: users
           install_extractor: false
+        - tap: tap-csv
+          mapping: fake
+          output_db: fake.db
+          target_table: customers
+          install_extractor: false
     steps:
     - uses: actions/checkout@v4
 
diff --git a/meltano.yml b/meltano.yml
index 1e45ca9..fdacfb1 100644
--- a/meltano.yml
+++ b/meltano.yml
@@ -36,7 +36,7 @@ plugins:
   mappers:
   - name: meltano-map-transformer
     namespace: meltano_map_transformer
-    pip_url: -e .
+    pip_url: -e .[faker]
     executable: meltano-map-transform
     settings:
     - name: stream_maps
@@ -72,6 +72,13 @@ plugins:
           users:
             id: id
             fields: "[f for f in fields if f['key'] != 'age']"
+    - name: fake
+      config:
+        stream_maps:
+          customers:
+            cc: fake.credit_card_number()  # add a new field with a fake credit card number
+        stream_map_config:
+          faker_seed: 123456
 environments:
 - name: dev
   config:
diff --git a/poetry.lock b/poetry.lock
index dc5dd8e..6e2eaef 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -376,6 +376,21 @@ files = [
 [package.extras]
 test = ["pytest (>=6)"]
 
+[[package]]
+name = "faker"
+version = "22.6.0"
+description = "Faker is a Python package that generates fake data for you."
+optional = true
+python-versions = ">=3.8"
+files = [
+    {file = "Faker-22.6.0-py3-none-any.whl", hash = "sha256:2b57f0256da6b45b7851dca87836ef5e2ae2fbb64d63d8697f1e47830d7b505d"},
+    {file = "Faker-22.6.0.tar.gz", hash = "sha256:fa6d969728ef3da6229da91267a1bd4e6b902044c4822012d4fc46c71bb92b26"},
+]
+
+[package.dependencies]
+python-dateutil = ">=2.4"
+typing-extensions = {version = ">=3.10.0.1", markers = "python_version <= \"3.8\""}
+
 [[package]]
 name = "fs"
 version = "2.4.16"
@@ -479,13 +494,13 @@ files = [
 
 [[package]]
 name = "importlib-metadata"
-version = "6.11.0"
+version = "7.0.1"
 description = "Read metadata from Python packages"
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "importlib_metadata-6.11.0-py3-none-any.whl", hash = "sha256:f0afba6205ad8f8947c7d338b5342d5db2afbfd82f9cbef7879a9539cc12eb9b"},
-    {file = "importlib_metadata-6.11.0.tar.gz", hash = "sha256:1231cf92d825c9e03cfc4da076a16de6422c863558229ea0b22b675657463443"},
+    {file = "importlib_metadata-7.0.1-py3-none-any.whl", hash = "sha256:4805911c3a4ec7c3966410053e9ec6a1fecd629117df5adee56dfc9432a1081e"},
+    {file = "importlib_metadata-7.0.1.tar.gz", hash = "sha256:f238736bb06590ae52ac1fab06a3a9ef1d8dce2b7a35b5ab329371d6c8f5d2cc"},
 ]
 
 [package.dependencies]
@@ -599,16 +614,6 @@ files = [
 importlib-resources = {version = ">=1.4.0", markers = "python_version < \"3.9\""}
 referencing = ">=0.31.0"
 
-[[package]]
-name = "memoization"
-version = "0.4.0"
-description = "A powerful caching library for Python, with TTL support and multiple algorithm options. (https://github.com/lonelyenvoy/python-memoization)"
-optional = false
-python-versions = ">=3, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, <4"
-files = [
-    {file = "memoization-0.4.0.tar.gz", hash = "sha256:fde5e7cd060ef45b135e0310cfec17b2029dc472ccb5bbbbb42a503d4538a135"},
-]
-
 [[package]]
 name = "packaging"
 version = "23.2"
@@ -836,17 +841,6 @@ files = [
 [package.extras]
 cli = ["click (>=5.0)"]
 
-[[package]]
-name = "pytz"
-version = "2023.4"
-description = "World timezone definitions, modern and historical"
-optional = false
-python-versions = "*"
-files = [
-    {file = "pytz-2023.4-py2.py3-none-any.whl", hash = "sha256:f90ef520d95e7c46951105338d918664ebfd6f1d995bd7d153127ce90efafa6a"},
-    {file = "pytz-2023.4.tar.gz", hash = "sha256:31d4583c4ed539cd037956140d695e42c033a19e984bfce9964a3f7d59bc2b40"},
-]
-
 [[package]]
 name = "pyyaml"
 version = "6.0.1"
@@ -1187,13 +1181,13 @@ files = [
 
 [[package]]
 name = "singer-sdk"
-version = "0.34.1"
+version = "0.35.0a5"
 description = "A framework for building Singer taps"
 optional = false
-python-versions = ">=3.7.1"
+python-versions = ">=3.8"
 files = [
-    {file = "singer_sdk-0.34.1-py3-none-any.whl", hash = "sha256:2b9afa40722c2d7288992d86d16298128e38387941306267d908b9cd954227a3"},
-    {file = "singer_sdk-0.34.1.tar.gz", hash = "sha256:5da11da3de07cc31cc8c1f3f19a40b8f8be4a0df9b5535fb90880c263e58aee5"},
+    {file = "singer_sdk-0.35.0a5-py3-none-any.whl", hash = "sha256:220145bacb7709825acbb59d69faa324a9c26571b161fc7798dd7bafc81b8f1a"},
+    {file = "singer_sdk-0.35.0a5.tar.gz", hash = "sha256:ed099380634668c61f3bd83693b493243fa26359912e82495409422e8c8b358b"},
 ]
 
 [package.dependencies]
@@ -1202,20 +1196,19 @@ backports-datetime-fromisoformat = {version = ">=2.0.1", markers = "python_versi
 click = ">=8.0,<9.0"
 cryptography = ">=3.4.6"
 fs = ">=2.4.16"
-importlib-metadata = {version = "<7.0.0", markers = "python_version < \"3.12\""}
+importlib-metadata = {version = "<8.0.0", markers = "python_version < \"3.12\""}
 importlib-resources = {version = ">=5.12.0", markers = "python_version < \"3.9\""}
 inflection = ">=0.5.1"
 joblib = ">=1.0.1"
 jsonpath-ng = ">=1.5.3"
-jsonschema = {version = ">=4.16.0", markers = "python_version >= \"3.8\""}
-memoization = {version = ">=0.3.2,<0.5.0", markers = "python_version < \"4\""}
+jsonschema = ">=4.16.0"
 packaging = ">=23.1"
-pendulum = {version = ">=2.1.0,<4", markers = "python_version >= \"3.8\""}
+pendulum = ">=2.1.0,<4"
 PyJWT = ">=2.4,<3.0"
 python-dateutil = ">=2.8.2"
 python-dotenv = ">=0.20"
-pytz = ">=2022.2.1"
 PyYAML = ">=6.0"
+referencing = ">=0.30.0"
 requests = ">=2.25.1"
 simpleeval = ">=0.9.13"
 simplejson = ">=3.17.6"
@@ -1225,7 +1218,8 @@ urllib3 = ">=1.26,<2"
 
 [package.extras]
 docs = ["furo (>=2022.12.7)", "myst-parser (>=1)", "sphinx (>=4.5)", "sphinx-autobuild (>=2021.3.14)", "sphinx-copybutton (>=0.3.1)", "sphinx-inline-tabs (>=2023.4.21)", "sphinx-notfound-page (>=1.0.0)", "sphinx-reredirects (>=0.1.1)"]
-parquet = ["numpy (<1.22)", "numpy (>=1.22)", "numpy (>=1.22,<1.25)", "pyarrow (>=11,<13)", "pyarrow (>=13)"]
+faker = ["faker (>=22.5,<23.0)"]
+parquet = ["numpy (>=1.22)", "numpy (>=1.22,<1.25)", "pyarrow (>=13)"]
 s3 = ["fs-s3fs (>=1.1.1)"]
 testing = ["pytest (>=7.2.1)", "pytest-durations (>=1.2.0)"]
 
@@ -1391,7 +1385,10 @@ files = [
 docs = ["furo", "jaraco.packaging (>=9.3)", "jaraco.tidelift (>=1.4)", "rst.linker (>=1.9)", "sphinx (<7.2.5)", "sphinx (>=3.5)", "sphinx-lint"]
 testing = ["big-O", "jaraco.functools", "jaraco.itertools", "more-itertools", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=2.2)", "pytest-ignore-flaky", "pytest-mypy (>=0.9.1)", "pytest-ruff"]
 
+[extras]
+faker = ["faker"]
+
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8"
-content-hash = "2b7d9568791569ee5d5af07e78648f0555702bc4e0c5932a53499b53ead1cbf9"
+content-hash = "e9dfae16725cee8a873d32b8d7a3b8cbcc7453bdc05316c6087ac198132e0a12"
diff --git a/pyproject.toml b/pyproject.toml
index 1dbc73f..ca9050d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,11 +18,18 @@ documentation = "https://github.com/MeltanoLabs/meltano-map-transform#readme"
 
 [tool.poetry.dependencies]
 python = ">=3.8"
-singer-sdk = "~=0.34.0"
+faker = { version = "~=22.6", optional = true }
+
+[tool.poetry.dependencies.singer-sdk]
+version = ">=0.34.0"
+allow-prereleases = true
 
 [tool.poetry.dev-dependencies]
 pytest = ">=7.4.4"
 
+[tool.poetry.extras]
+faker = ["faker"]
+
 [tool.poetry-dynamic-versioning]
 enable = true
 format-jinja = """