diff --git a/poetry.lock b/poetry.lock
index 03723ca0cda89d611a48bad75f0cb8bbb5317f46..cc7b0be05640e49c69c452922f484859b1443712 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -220,6 +220,17 @@ optional = false
 python-versions = "*"
 version = "3.0.12"
 
+[[package]]
+category = "main"
+description = "Python humanize utilities"
+name = "humanize"
+optional = false
+python-versions = ">=3.5"
+version = "2.5.0"
+
+[package.extras]
+tests = ["freezegun", "pytest", "pytest-cov"]
+
 [[package]]
 category = "dev"
 description = "File identification library for Python"
@@ -710,7 +721,7 @@ docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["pathlib2", "unittest2", "jaraco.itertools", "func-timeout"]
 
 [metadata]
-content-hash = "7d5ff01c539b6811344ea0cdbc241104e82a32ce9066b01864c84373f666423f"
+content-hash = "e2caf5274baaaee66c1440411e0f5c9babf99df4839b5e48b5f4bc13aaf783f9"
 python-versions = "^3.5.3"
 
 [metadata.files]
@@ -860,6 +871,10 @@ filelock = [
     {file = "filelock-3.0.12-py3-none-any.whl", hash = "sha256:929b7d63ec5b7d6b71b0fa5ac14e030b3f70b75747cef1b10da9b879fef15836"},
     {file = "filelock-3.0.12.tar.gz", hash = "sha256:18d82244ee114f543149c66a6e0c14e9c4f8a1044b5cdaadd0f82159d6a6ff59"},
 ]
+humanize = [
+    {file = "humanize-2.5.0-py3-none-any.whl", hash = "sha256:89062c6db8601693b7d223443d0d7529aa9577df43a1387ddd4b9c273abb4a51"},
+    {file = "humanize-2.5.0.tar.gz", hash = "sha256:8a68bd9bccb899fd9bfb1e6d96c1e84e4475551cc9a5b5bdbd69b9b1cfd19c80"},
+]
 identify = [
     {file = "identify-1.4.21-py2.py3-none-any.whl", hash = "sha256:dac33eff90d57164e289fb20bf4e131baef080947ee9bf45efcd0da8d19064bf"},
     {file = "identify-1.4.21.tar.gz", hash = "sha256:c4d07f2b979e3931894170a9e0d4b8281e6905ea6d018c326f7ffefaf20db680"},
diff --git a/pyproject.toml b/pyproject.toml
index 27ea155684556749c6eaf5116ef2504c626fe1e5..ac3eb1d0ddcd4be90d4ba9cf115e5c23c14fbd59 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,6 +18,7 @@ click = "^7.0"
 ipaddress = "^1.0"
 tabulate = "^0.8.3"
 texttable = "^1.6"
+humanize = "^2.5.0"
 PyNaCl = "^1.3"
 
 [tool.poetry.dev-dependencies]