diff --git a/poetry.lock b/poetry.lock
index de76ce5..2bc7f12 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -57,7 +57,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
 [[package]]
 name = "coverage"
-version = "5.3"
+version = "5.4"
 description = "Code coverage measurement for Python"
 category = "dev"
 optional = false
@@ -335,8 +335,8 @@ six = "*"
 
 [metadata]
 lock-version = "1.1"
-python-versions = "^3.5"
-content-hash = "81acb724bb3f7bf2528136306a09c31098cde2e21263724f5b6d1a1196484782"
+python-versions = "^3.6"
+content-hash = "4e31c83bbbc271b7a134e536e11c1f95b4a252fe601000cbc353766abc2cea1f"
 
 [metadata.files]
 alabaster = [
@@ -364,40 +364,55 @@ colorama = [
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 ]
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