diff --git a/poetry.lock b/poetry.lock
index 6afb23f..3434f55 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -271,7 +271,7 @@ docs = ["sphinx", "rst.linker", "jaraco.packaging"]
 category = "main"
 description = "A very fast and expressive template engine."
 name = "jinja2"
-optional = true
+optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 version = "2.11.2"
 
@@ -285,7 +285,7 @@ i18n = ["Babel (>=0.8)"]
 category = "main"
 description = "Safely add untrusted strings to HTML/XML markup."
 name = "markupsafe"
-optional = true
+optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*"
 version = "1.1.1"
 
@@ -369,7 +369,7 @@ dev = ["pre-commit", "tox"]
 category = "main"
 description = "Protocol Buffers"
 name = "protobuf"
-optional = true
+optional = false
 python-versions = "*"
 version = "3.12.2"
 
@@ -490,14 +490,6 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 version = "1.15.0"
 
-[[package]]
-category = "main"
-description = "String case converter."
-name = "stringcase"
-optional = false
-python-versions = "*"
-version = "1.2.0"
-
 [[package]]
 category = "main"
 description = "Python Library for Tom's Obvious, Minimal Language"
@@ -612,7 +604,7 @@ testing = ["jaraco.itertools", "func-timeout"]
 compiler = ["black", "jinja2", "protobuf"]
 
 [metadata]
-content-hash = "ecafcaed2d4a25c2829e6dc3ef3c56cd72a8bc28c25c7aeae3484c978c816722"
+content-hash = "8a4fa01ede86e1b5ba35b9dab8b6eacee766a9b5666f48ab41445c01882ab003"
 python-versions = "^3.6"
 
 [metadata.files]
@@ -865,6 +857,8 @@ protobuf = [
     {file = "protobuf-3.12.2-cp37-cp37m-win_amd64.whl", hash = "sha256:e72736dd822748b0721f41f9aaaf6a5b6d5cfc78f6c8690263aef8bba4457f0e"},
     {file = "protobuf-3.12.2-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:87535dc2d2ef007b9d44e309d2b8ea27a03d2fa09556a72364d706fcb7090828"},
     {file = "protobuf-3.12.2-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:50b5fee674878b14baea73b4568dc478c46a31dd50157a5b5d2f71138243b1a9"},
+    {file = "protobuf-3.12.2-py2.py3-none-any.whl", hash = "sha256:a96f8fc625e9ff568838e556f6f6ae8eca8b4837cdfb3f90efcb7c00e342a2eb"},
+    {file = "protobuf-3.12.2.tar.gz", hash = "sha256:49ef8ab4c27812a89a76fa894fe7a08f42f2147078392c0dee51d4a444ef6df5"},
 ]
 py = [
     {file = "py-1.8.2-py2.py3-none-any.whl", hash = "sha256:a673fa23d7000440cc885c17dbd34fafcb7d7a6e230b29f6766400de36a33c44"},
@@ -920,9 +914,6 @@ six = [
     {file = "six-1.15.0-py2.py3-none-any.whl", hash = "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"},
     {file = "six-1.15.0.tar.gz", hash = "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259"},
 ]
-stringcase = [
-    {file = "stringcase-1.2.0.tar.gz", hash = "sha256:48a06980661908efe8d9d34eab2b6c13aefa2163b3ced26972902e3bdfd87008"},
-]
 toml = [
     {file = "toml-0.10.1-py2.py3-none-any.whl", hash = "sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88"},
     {file = "toml-0.10.1.tar.gz", hash = "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f"},
diff --git a/pyproject.toml b/pyproject.toml
index f4466d9..f1e966b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,6 @@ dataclasses = { version = "^0.7", python = ">=3.6, <3.7" }
 grpclib = "^0.3.1"
 jinja2 = { version = "^2.11.2", optional = true }
 protobuf = { version = "^3.12.2", optional = true }
-stringcase = "^1.2.0"
 
 [tool.poetry.dev-dependencies]
 black = "^19.10b0"