diff --git a/poetry.lock b/poetry.lock
index 152f705..5aab08e 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -70,14 +70,6 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 [package.dependencies]
 six = "*"
 
-[[package]]
-name = "cached-property"
-version = "1.5.2"
-description = "A decorator for caching properties in classes."
-category = "main"
-optional = false
-python-versions = "*"
-
 [[package]]
 name = "cachetools"
 version = "4.2.2"
@@ -257,19 +249,6 @@ category = "dev"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
 
-[[package]]
-name = "mock"
-version = "4.0.2"
-description = "Rolling backport of unittest.mock for all Pythons"
-category = "main"
-optional = false
-python-versions = ">=3.6"
-
-[package.extras]
-build = ["twine", "wheel", "blurb"]
-docs = ["sphinx"]
-test = ["pytest", "pytest-cov"]
-
 [[package]]
 name = "mypy"
 version = "0.790"
@@ -334,18 +313,20 @@ python-versions = "*"
 
 [[package]]
 name = "peewee-migrate"
-version = "1.1.6"
-description = "Simple migration engine for Peewee"
+version = "1.4.7"
+description = "A simple migration engine for Peewee ORM"
 category = "main"
 optional = false
-python-versions = "*"
+python-versions = ">=3.7"
 
 [package.dependencies]
-cached-property = ">=1.4.2"
 click = ">=6.7"
-mock = ">=2.0.0"
 peewee = ">=3.3.3"
 
+[package.extras]
+build = ["bump2version", "wheel"]
+tests = ["pytest", "pytest-mypy", "psycopg2-binary"]
+
 [[package]]
 name = "pycparser"
 version = "2.20"
@@ -688,10 +669,6 @@ blessings = [
     {file = "blessings-1.7-py3-none-any.whl", hash = "sha256:b1fdd7e7a675295630f9ae71527a8ebc10bfefa236b3d6aa4932ee4462c17ba3"},
     {file = "blessings-1.7.tar.gz", hash = "sha256:98e5854d805f50a5b58ac2333411b0482516a8210f23f43308baeb58d77c157d"},
 ]
-cached-property = [
-    {file = "cached-property-1.5.2.tar.gz", hash = "sha256:9fa5755838eecbb2d234c3aa390bd80fbd3ac6b6869109bfc1b499f7bd89a130"},
-    {file = "cached_property-1.5.2-py2.py3-none-any.whl", hash = "sha256:df4f613cf7ad9a588cc381aaf4a512d26265ecebd5eb9e1ba12f1319eb85a6a0"},
-]
 cachetools = [
     {file = "cachetools-4.2.2-py3-none-any.whl", hash = "sha256:2cc0b89715337ab6dbba85b5b50effe2b0c74e035d83ee8ed637cf52f12ae001"},
     {file = "cachetools-4.2.2.tar.gz", hash = "sha256:61b5ed1e22a0924aed1d23b478f37e8d52549ff8a961de2909c69bf950020cff"},
@@ -894,10 +871,6 @@ markupsafe = [
     {file = "MarkupSafe-1.1.1-cp39-cp39-win_amd64.whl", hash = "sha256:b7d644ddb4dbd407d31ffb699f1d140bc35478da613b441c582aeb7c43838dd8"},
     {file = "MarkupSafe-1.1.1.tar.gz", hash = "sha256:29872e92839765e546828bb7754a68c418d927cd064fd4708fab9fe9c8bb116b"},
 ]
-mock = [
-    {file = "mock-4.0.2-py3-none-any.whl", hash = "sha256:3f9b2c0196c60d21838f307f5825a7b86b678cedc58ab9e50a8988187b4d81e0"},
-    {file = "mock-4.0.2.tar.gz", hash = "sha256:dd33eb70232b6118298d516bbcecd26704689c386594f0f3c4f13867b2c56f72"},
-]
 mypy = [
     {file = "mypy-0.790-cp35-cp35m-macosx_10_6_x86_64.whl", hash = "sha256:bd03b3cf666bff8d710d633d1c56ab7facbdc204d567715cb3b9f85c6e94f669"},
     {file = "mypy-0.790-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:2170492030f6faa537647d29945786d297e4862765f0b4ac5930ff62e300d802"},
@@ -930,8 +903,8 @@ peewee = [
     {file = "peewee-3.14.0.tar.gz", hash = "sha256:59c5ef43877029b9133d87001dcc425525de231d1f983cece8828197fb4b84fa"},
 ]
 peewee-migrate = [
-    {file = "peewee_migrate-1.1.6-py2.py3-none-any.whl", hash = "sha256:17c6340047ce4090eb352488c8a7ba991dd3cf253aeeb2232881ae45414cb2c5"},
-    {file = "peewee_migrate-1.1.6.tar.gz", hash = "sha256:9291c6cd39d214644ebc5d2ef2a43f9310f9546aedc8280015647c6f8ef92614"},
+    {file = "peewee-migrate-1.4.7.tar.gz", hash = "sha256:45ef69bcec9cb57f773b51aee3aab14c769ddd46cd4662ef9b60da83c744474a"},
+    {file = "peewee_migrate-1.4.7-py3-none-any.whl", hash = "sha256:48f079dab77596806df863da3470f920de26b43a7660faa4a3c19f72209703ee"},
 ]
 pycparser = [
     {file = "pycparser-2.20-py2.py3-none-any.whl", hash = "sha256:7582ad22678f0fcd81102833f60ef8d0e57288b6b5fb00323d101be910e35705"},