diff --git a/poetry.lock b/poetry.lock
index aba30414d..d2da421fc 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -55,6 +55,18 @@ optional = false
 python-versions = "*"
 version = "1.0.3"
 
+[[package]]
+category = "main"
+description = "BSON codec for Python"
+name = "bson"
+optional = false
+python-versions = "*"
+version = "0.5.10"
+
+[package.dependencies]
+python-dateutil = ">=2.4.0"
+six = ">=1.9.0"
+
 [[package]]
 category = "main"
 description = "Python package for providing Mozilla's CA Bundle."
@@ -495,6 +507,7 @@ sphinx = "*"
 reference = "0.5.0rc2"
 type = "git"
 url = "https://github.com/readthedocs/sphinx_rtd_theme.git"
+
 [[package]]
 category = "dev"
 description = "Sitemap generator for Sphinx"
@@ -609,7 +622,7 @@ python-versions = ">=3.6"
 version = "3.1.0"
 
 [metadata]
-content-hash = "dc48dc8f44462e1af7a09655a642f18b662be956bbbfaabae1995a8055c15ba5"
+content-hash = "1dcf8b24427af2659c26be1489bde275acdf43939363f257980c5611797a3120"
 python-versions = "^3.6"
 
 [metadata.hashes]
@@ -619,6 +632,7 @@ atomicwrites = ["6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e19
 attrs = ["08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c", "f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"]
 babel = ["1aac2ae2d0d8ea368fa90906567f5c08463d98ade155c0c4bfedd6a0f7160e38", "d670ea0b10f8b723672d3a6abeb87b565b244da220d76b4dba1b66269ec152d4"]
 base58 = ["1e42993c0628ed4f898c03b522b26af78fb05115732549b21a028bc4633d19ab", "6aa0553e477478993588303c54659d15e3c17ae062508c854a8b752d07c716bd", "9a793c599979c497800eb414c852b80866f28daaed5494703fc129592cc83e60"]
+bson = ["d6511b2ab051139a9123c184de1a04227262173ad593429d21e443d6462d6590"]
 certifi = ["5930595817496dd21bb8dc35dad090f1c2cd0adfaf21204bf6732ca5d8ee34d3", "8fc0819f1f30ba15bdb34cceffb9ef04d99f420f68eb75d901e9560b8749fc41"]
 cffi = ["267adcf6e68d77ba154334a3e4fc921b8e63cbb38ca00d33d40655d4228502bc", "26f33e8f6a70c255767e3c3f957ccafc7f1f706b966e110b855bfe944511f1f9", "3cd2c044517f38d1b577f05927fb9729d3396f1d44d0c659a445599e79519792", "4a03416915b82b81af5502459a8a9dd62a3c299b295dcdf470877cb948d655f2", "4ce1e995aeecf7cc32380bc11598bfdfa017d592259d5da00fc7ded11e61d022", "4f53e4128c81ca3212ff4cf097c797ab44646a40b42ec02a891155cd7a2ba4d8", "4fa72a52a906425416f41738728268072d5acfd48cbe7796af07a923236bcf96", "66dd45eb9530e3dde8f7c009f84568bc7cac489b93d04ac86e3111fb46e470c2", "6923d077d9ae9e8bacbdb1c07ae78405a9306c8fd1af13bfa06ca891095eb995", "833401b15de1bb92791d7b6fb353d4af60dc688eaa521bd97203dcd2d124a7c1", "8416ed88ddc057bab0526d4e4e9f3660f614ac2394b5e019a628cdfff3733849", "892daa86384994fdf4856cb43c93f40cbe80f7f95bb5da94971b39c7f54b3a9c", "98be759efdb5e5fa161e46d404f4e0ce388e72fbf7d9baf010aff16689e22abe", "a6d28e7f14ecf3b2ad67c4f106841218c8ab12a0683b1528534a6c87d2307af3", "b1d6ebc891607e71fd9da71688fcf332a6630b7f5b7f5549e6e631821c0e5d90", "b2a2b0d276a136146e012154baefaea2758ef1f56ae9f4e01c612b0831e0bd2f", "b87dfa9f10a470eee7f24234a37d1d5f51e5f5fa9eeffda7c282e2b8f5162eb1", "bac0d6f7728a9cc3c1e06d4fcbac12aaa70e9379b3025b27ec1226f0e2d404cf", "c991112622baee0ae4d55c008380c32ecfd0ad417bcd0417ba432e6ba7328caa", "cda422d54ee7905bfc53ee6915ab68fe7b230cacf581110df4272ee10462aadc", "d3148b6ba3923c5850ea197a91a42683f946dba7e8eb82dfa211ab7e708de939", "d6033b4ffa34ef70f0b8086fd4c3df4bf801fee485a8a7d4519399818351aa8e", "ddff0b2bd7edcc8c82d1adde6dbbf5e60d57ce985402541cd2985c27f7bec2a0", "e23cb7f1d8e0f93addf0cae3c5b6f00324cccb4a7949ee558d7b6ca973ab8ae9", "effd2ba52cee4ceff1a77f20d2a9f9bf8d50353c854a282b8760ac15b9833168", "f90c2267101010de42f7273c94a1f026e56cbc043f9330acd8a80e64300aba33", "f960375e9823ae6a07072ff7f8a85954e5a6434f97869f50d0e41649a1c8144f", "fcf32bf76dc25e30ed793145a57426064520890d7c02866eb93d3e4abe516948"]
 chardet = ["84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae", "fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"]
diff --git a/pyproject.toml b/pyproject.toml
index 429fd8d24..c8c34817f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -31,6 +31,7 @@ pyyaml = "*"
 pysodium = "^0.7.1"
 secp256k1 = "^0.13.2"
 fastecdsa = "^1.7.1"
+bson = "^0.5.10"
 
 [tool.poetry.dev-dependencies]
 parameterized = "^0.7.0"