diff --git a/poetry.lock b/poetry.lock
index 530f284..6433d1b 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -270,7 +270,7 @@ python-versions = ">=3.7"
 
 [[package]]
 name = "iscc-schema"
-version = "0.3.9"
+version = "0.4.0"
 description = "ISCC - JSON-LD Metadata and OpenAPI Service Descriptions"
 category = "dev"
 optional = false
@@ -520,11 +520,11 @@ mkdocstrings = ">=0.19"
 
 [[package]]
 name = "more-itertools"
-version = "8.14.0"
+version = "9.0.0"
 description = "More routines for operating on iterables, beyond itertools"
 category = "main"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.7"
 
 [[package]]
 name = "mypy-extensions"
@@ -906,7 +906,7 @@ turbo = ["cython"]
 [metadata]
 lock-version = "1.1"
 python-versions = ">=3.7.2,<4.0"
-content-hash = "622ffde83e00e45579b524c0d9421d197ed61cb017d3a3337abed5babcaa2e30"
+content-hash = "ea7011d0e0c238578c81ec977a56f7cd416f67e5ecc51265864845295d8acbb8"
 
 [metadata.files]
 attrs = [
@@ -1249,8 +1249,8 @@ iniconfig = [
     {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
 ]
 iscc-schema = [
-    {file = "iscc-schema-0.3.9.tar.gz", hash = "sha256:c4b2f45bdf8f81d2e3d408201e24f42212fd3f8059d5c73f0f24296337b5c04e"},
-    {file = "iscc_schema-0.3.9-py3-none-any.whl", hash = "sha256:1f76d2544296e81bc01ecf61e6ec7c36cefb5a8789a4c93c9b4409df3c7f2c5d"},
+    {file = "iscc-schema-0.4.0.tar.gz", hash = "sha256:fdc9367cd022c2aea7b93d9c81f6496cf9260e138333ce0a314dbb932fcc76b6"},
+    {file = "iscc_schema-0.4.0-py3-none-any.whl", hash = "sha256:2ab1265e526a8d6c4e1e558c7b15ff2b494923caf6dcfdc188d4a9f58130e492"},
 ]
 jcs = [
     {file = "jcs-0.2.1-py3-none-any.whl", hash = "sha256:e23a3e1de60f832d33cd811bb9c3b3be79219cdf95f63b88f0972732c3fa8476"},
@@ -1359,8 +1359,8 @@ mkdocstrings-python = [
     {file = "mkdocstrings_python-0.8.3-py3-none-any.whl", hash = "sha256:4e6e1cd6f37a785de0946ced6eb846eb2f5d891ac1cc2c7b832943d3529087a7"},
 ]
 more-itertools = [
-    {file = "more-itertools-8.14.0.tar.gz", hash = "sha256:c09443cd3d5438b8dafccd867a6bc1cb0894389e90cb53d227456b0b0bccb750"},
-    {file = "more_itertools-8.14.0-py3-none-any.whl", hash = "sha256:1bc4f91ee5b1b31ac7ceacc17c09befe6a40a503907baf9c839c229b5095cfd2"},
+    {file = "more-itertools-9.0.0.tar.gz", hash = "sha256:5a6257e40878ef0520b1803990e3e22303a41b5714006c32a3fd8304b26ea1ab"},
+    {file = "more_itertools-9.0.0-py3-none-any.whl", hash = "sha256:250e83d7e81d0c87ca6bd942e6aeab8cc9daa6096d12c5308f3f92fa5e5c1f41"},
 ]
 mypy-extensions = [
     {file = "mypy_extensions-0.4.3-py2.py3-none-any.whl", hash = "sha256:090fedd75945a69ae91ce1303b5824f428daf5a028d2f6ab8a299250a846f15d"},
diff --git a/pyproject.toml b/pyproject.toml
index bc0c4fe..b0394da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -45,7 +45,7 @@ python = ">=3.7.2,<4.0"
 cython = { version = "^0.29", optional = true }
 blake3 = "^0.3"
 xxhash = "^3.0"
-more-itertools = "^8.14"
+more-itertools = "^9.0"
 bitarray-hardbyte = "^2.3"
 pybase64 = "^1.2"
 pydantic = {extras = ["dotenv"], version = "*"}
@@ -69,7 +69,7 @@ PyYAML = "*"
 coverage = "*"
 pytest-cov = "*"
 poethepoet = "*"
-iscc-schema = "^0.3"
+iscc-schema = "^0.4"
 bandit = "^1.7.2"
 mdformat = "*"
 mdformat_admon = "*"