diff --git a/poetry.lock b/poetry.lock
index e7f9316..ddb9472 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -261,15 +261,15 @@ category = "dev"
 description = "Pytest plugin for measuring coverage."
 name = "pytest-cov"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "2.8.1"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "2.10.1"
 
 [package.dependencies]
 coverage = ">=4.4"
-pytest = ">=3.6"
+pytest = ">=4.6"
 
 [package.extras]
-testing = ["fields", "hunter", "process-tests (2.0.2)", "six", "virtualenv"]
+testing = ["fields", "hunter", "process-tests (2.0.2)", "six", "pytest-xdist", "virtualenv"]
 
 [[package]]
 category = "dev"
@@ -368,7 +368,8 @@ docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["pathlib2", "unittest2", "jaraco.itertools", "func-timeout"]
 
 [metadata]
-content-hash = "b6afd89b35b40281b8db955efbc4018d4e2b09430a289716f45b9d4bd691c35c"
+content-hash = "52e36ff2d2b3cddf508b98b8b2593b398926f55db615ed887b32e81230b8e31b"
+lock-version = "1.0"
 python-versions = "^3.5.2"
 
 [metadata.files]
@@ -514,8 +515,8 @@ pytest = [
     {file = "pytest-5.4.1.tar.gz", hash = "sha256:84dde37075b8805f3d1f392cc47e38a0e59518fb46a431cfdaf7cf1ce805f970"},
 ]
 pytest-cov = [
-    {file = "pytest-cov-2.8.1.tar.gz", hash = "sha256:cc6742d8bac45070217169f5f72ceee1e0e55b0221f54bcf24845972d3a47f2b"},
-    {file = "pytest_cov-2.8.1-py2.py3-none-any.whl", hash = "sha256:cdbdef4f870408ebdbfeb44e63e07eb18bb4619fae852f6e760645fa36172626"},
+    {file = "pytest-cov-2.10.1.tar.gz", hash = "sha256:47bd0ce14056fdd79f93e1713f88fad7bdcc583dcd7783da86ef2f085a0bb88e"},
+    {file = "pytest_cov-2.10.1-py2.py3-none-any.whl", hash = "sha256:45ec2d5182f89a81fc3eb29e3d1ed3113b9e9a873bcddb2a71faaab066110191"},
 ]
 pytest-tornado = [
     {file = "pytest-tornado-0.8.0.tar.gz", hash = "sha256:dfb9ed51966a79df9427d931afaae562ab14074f614f6320369acac8e2c18a59"},
@@ -549,6 +550,24 @@ six = [
     {file = "six-1.14.0.tar.gz", hash = "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a"},
 ]
 sqlalchemy = [
+    {file = "SQLAlchemy-1.3.16-cp27-cp27m-macosx_10_13_x86_64.whl", hash = "sha256:8d8c21e9d4efef01351bf28513648ceb988031be4159745a7ad1b3e28c8ff68a"},
+    {file = "SQLAlchemy-1.3.16-cp27-cp27m-win32.whl", hash = "sha256:083e383a1dca8384d0ea6378bd182d83c600ed4ff4ec8247d3b2442cf70db1ad"},
+    {file = "SQLAlchemy-1.3.16-cp27-cp27m-win_amd64.whl", hash = "sha256:128f6179325f7597a46403dde0bf148478f868df44841348dfc8d158e00db1f9"},
+    {file = "SQLAlchemy-1.3.16-cp36-cp36m-macosx_10_13_x86_64.whl", hash = "sha256:6056b671aeda3fc451382e52ab8a753c0d5f66ef2a5ccc8fa5ba7abd20988b4d"},
+    {file = "SQLAlchemy-1.3.16-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:7025c639ce7e170db845e94006cf5f404e243e6fc00d6c86fa19e8ad8d411880"},
+    {file = "SQLAlchemy-1.3.16-cp36-cp36m-manylinux2010_x86_64.whl", hash = "sha256:e18752cecaef61031252ca72031d4d6247b3212ebb84748fc5d1a0d2029c23ea"},
+    {file = "SQLAlchemy-1.3.16-cp36-cp36m-win32.whl", hash = "sha256:0a690a6486658d03cc6a73536d46e796b6570ac1f8a7ec133f9e28c448b69828"},
+    {file = "SQLAlchemy-1.3.16-cp36-cp36m-win_amd64.whl", hash = "sha256:d00b393f05dbd4ecd65c989b7f5a81110eae4baea7a6a4cdd94c20a908d1456e"},
+    {file = "SQLAlchemy-1.3.16-cp37-cp37m-macosx_10_13_x86_64.whl", hash = "sha256:114b6ace30001f056e944cebd46daef38fdb41ebb98f5e5940241a03ed6cad43"},
+    {file = "SQLAlchemy-1.3.16-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:13d48cd8b925b6893a4e59b2dfb3e59a5204fd8c98289aad353af78bd214db49"},
+    {file = "SQLAlchemy-1.3.16-cp37-cp37m-manylinux2010_x86_64.whl", hash = "sha256:211a1ce7e825f7142121144bac76f53ac28b12172716a710f4bf3eab477e730b"},
+    {file = "SQLAlchemy-1.3.16-cp37-cp37m-win32.whl", hash = "sha256:68d78cf4a9dfade2e6cf57c4be19f7b82ed66e67dacf93b32bb390c9bed12749"},
+    {file = "SQLAlchemy-1.3.16-cp37-cp37m-win_amd64.whl", hash = "sha256:2dc57ee80b76813759cccd1a7affedf9c4dbe5b065a91fb6092c9d8151d66078"},
+    {file = "SQLAlchemy-1.3.16-cp38-cp38-macosx_10_13_x86_64.whl", hash = "sha256:43078c7ec0457387c79b8d52fff90a7ad352ca4c7aa841c366238c3e2cf52fdf"},
+    {file = "SQLAlchemy-1.3.16-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:bbb545da054e6297242a1bb1ba88e7a8ffb679f518258d66798ec712b82e4e07"},
+    {file = "SQLAlchemy-1.3.16-cp38-cp38-manylinux2010_x86_64.whl", hash = "sha256:5b1bf3c2c2dca738235ce08079783ef04f1a7fc5b21cf24adaae77f2da4e73c3"},
+    {file = "SQLAlchemy-1.3.16-cp38-cp38-win32.whl", hash = "sha256:3e625e283eecc15aee5b1ef77203bfb542563fa4a9aa622c7643c7b55438ff49"},
+    {file = "SQLAlchemy-1.3.16-cp38-cp38-win_amd64.whl", hash = "sha256:7d98e0785c4cd7ae30b4a451416db71f5724a1839025544b4edbd92e00b91f0f"},
     {file = "SQLAlchemy-1.3.16.tar.gz", hash = "sha256:7224e126c00b8178dfd227bc337ba5e754b197a3867d33b9f30dc0208f773d70"},
 ]
 toml = [
diff --git a/pyproject.toml b/pyproject.toml
index 0394b1f..a52010b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ black = { version = "^19.10b0", python = ">=3.6" }
 
 # tests
 pytest = "^5.3.2"
-pytest-cov = "^2.8.1"
+pytest-cov = "^2.10.1"
 pytest-tornado = "^0.8.0"
 
 [tool.poetry.plugins."gino.extensions"]