diff --git a/common/pyproject.toml b/common/pyproject.toml
index c6fb16d4..ab52a6ae 100644
--- a/common/pyproject.toml
+++ b/common/pyproject.toml
@@ -43,7 +43,7 @@ build-backend = "hatchling.build"
 [dependency-groups]
 dev = [
     # Testing tools
-    "pytest ~=8.3.4",
+    "pytest~=9.0.3",
     "pytest-cov ~=6.0.0",
     "dirty-equals ~=0.9.0",
     # Linting and type checking
diff --git a/common/uv.lock b/common/uv.lock
index 10243742..50354cfe 100644
--- a/common/uv.lock
+++ b/common/uv.lock
@@ -229,7 +229,7 @@ provides-extras = ["full"]
 dev = [
     { name = "dirty-equals", specifier = "~=0.9.0" },
     { name = "grpcio-tools", specifier = "~=1.73.1" },
-    { name = "pytest", specifier = "~=8.3.4" },
+    { name = "pytest", specifier = "~=9.0.3" },
     { name = "pytest-cov", specifier = "~=6.0.0" },
     { name = "ruff", specifier = "~=0.14.0" },
     { name = "ty" },
@@ -1303,6 +1303,15 @@ wheels = [
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 ]
 
+[[package]]
+name = "pygments"
+version = "2.20.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/c3/b2/bc9c9196916376152d655522fdcebac55e66de6603a76a02bca1b6414f6c/pygments-2.20.0.tar.gz", hash = "sha256:6757cd03768053ff99f3039c1a36d6c0aa0b263438fcab17520b30a303a82b5f", size = 4955991, upload-time = "2026-03-29T13:29:33.898Z" }
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+]
+
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 name = "pyjwt"
 version = "2.12.1"
@@ -1339,17 +1348,18 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "8.3.5"
+version = "9.0.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
     { name = "iniconfig" },
     { name = "packaging" },
     { name = "pluggy" },
+    { name = "pygments" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/ae/3c/c9d525a414d506893f0cd8a8d0de7706446213181570cdbd766691164e40/pytest-8.3.5.tar.gz", hash = "sha256:f4efe70cc14e511565ac476b57c279e12a855b11f48f212af1080ef2263d3845", size = 1450891, upload-time = "2025-03-02T12:54:54.503Z" }
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+    { url = "https://files.pythonhosted.org/packages/d4/24/a372aaf5c9b7208e7112038812994107bc65a84cd00e0354a88c2c77a617/pytest-9.0.3-py3-none-any.whl", hash = "sha256:2c5efc453d45394fdd706ade797c0a81091eccd1d6e4bccfcd476e2b8e0ab5d9", size = 375249, upload-time = "2026-04-07T17:16:16.13Z" },
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 [[package]]
@@ -1388,11 +1398,11 @@ wheels = [
 
 [[package]]
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+version = "0.0.26"
 source = { registry = "https://pypi.org/simple" }
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 [[package]]
diff --git a/fuzzer/pyproject.toml b/fuzzer/pyproject.toml
index f2508b4b..b9caeebe 100644
--- a/fuzzer/pyproject.toml
+++ b/fuzzer/pyproject.toml
@@ -40,7 +40,7 @@ build-backend = "hatchling.build"
 [dependency-groups]
 dev = [
     # Testing tools
-    "pytest ~=8.3.4",
+    "pytest~=9.0.3",
     "pytest-cov ~=6.0.0",
     # Linting and type checking
     "ruff ~=0.14.0",
diff --git a/fuzzer/uv.lock b/fuzzer/uv.lock
index 6fa27ed7..6b7b3ccd 100644
--- a/fuzzer/uv.lock
+++ b/fuzzer/uv.lock
@@ -371,7 +371,7 @@ requires-dist = [
 [package.metadata.requires-dev]
 dev = [
     { name = "hypothesis", specifier = ">=6.148.7" },
-    { name = "pytest", specifier = "~=8.3.4" },
+    { name = "pytest", specifier = "~=9.0.3" },
     { name = "pytest-cov", specifier = "~=6.0.0" },
     { name = "ruff", specifier = "~=0.14.0" },
     { name = "ty" },
@@ -1360,6 +1360,15 @@ wheels = [
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 ]
 
+[[package]]
+name = "pygments"
+version = "2.20.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/c3/b2/bc9c9196916376152d655522fdcebac55e66de6603a76a02bca1b6414f6c/pygments-2.20.0.tar.gz", hash = "sha256:6757cd03768053ff99f3039c1a36d6c0aa0b263438fcab17520b30a303a82b5f", size = 4955991, upload-time = "2026-03-29T13:29:33.898Z" }
+wheels = [
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+]
+
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 name = "pyjwt"
 version = "2.12.1"
@@ -1396,17 +1405,18 @@ wheels = [
 
 [[package]]
 name = "pytest"
-version = "8.3.5"
+version = "9.0.3"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
     { name = "iniconfig" },
     { name = "packaging" },
     { name = "pluggy" },
+    { name = "pygments" },
 ]
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 [[package]]
@@ -1445,11 +1455,11 @@ wheels = [
 
 [[package]]
 name = "python-multipart"
-version = "0.0.22"
+version = "0.0.26"
 source = { registry = "https://pypi.org/simple" }
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 [[package]]
diff --git a/fuzzer_runner/pyproject.toml b/fuzzer_runner/pyproject.toml
index efc21d0d..55d5277a 100644
--- a/fuzzer_runner/pyproject.toml
+++ b/fuzzer_runner/pyproject.toml
@@ -37,7 +37,7 @@ common = { path = "../common", editable = true }
 [dependency-groups]
 dev = [
     # Testing tools
-    "pytest ~=8.3.4",
+    "pytest~=9.0.3",
     "pytest-cov ~=6.0.0",
     "httpx ~=0.27.0",  # For FastAPI testing
     # Linting and type checking
diff --git a/fuzzer_runner/uv.lock b/fuzzer_runner/uv.lock
index 3902f394..00d01cae 100644
--- a/fuzzer_runner/uv.lock
+++ b/fuzzer_runner/uv.lock
@@ -276,7 +276,7 @@ requires-dist = [
 [package.metadata.requires-dev]
 dev = [
     { name = "httpx", specifier = "~=0.27.0" },
-    { name = "pytest", specifier = "~=8.3.4" },
+    { name = "pytest", specifier = "~=9.0.3" },
     { name = "pytest-cov", specifier = "~=6.0.0" },
     { name = "ruff", specifier = "~=0.14.0" },
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+version = "2.20.0"
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+
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 name = "pymemcache"
 version = "4.0.0"
@@ -1092,17 +1101,18 @@ wheels = [
 
 [[package]]
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+version = "9.0.3"
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 dependencies = [
     { name = "colorama", marker = "sys_platform == 'win32'" },
     { name = "iniconfig" },
     { name = "packaging" },
     { name = "pluggy" },
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 ]
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diff --git a/orchestrator/uv.lock b/orchestrator/uv.lock
index 0dc67682..22c22995 100644
--- a/orchestrator/uv.lock
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@@ -1698,11 +1698,11 @@ wheels = [
 
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index 2bbe738e..32609c6f 100644
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diff --git a/program-model/pyproject.toml b/program-model/pyproject.toml
index 94aae60f..fe9b6f8f 100644
--- a/program-model/pyproject.toml
+++ b/program-model/pyproject.toml
@@ -34,7 +34,7 @@ Issues = "https://github.com/trailofbits/buttercup/issues"
 [dependency-groups]
 dev = [
     # Testing tools
-    "pytest ~=8.3.4",
+    "pytest~=9.0.3",
     "pytest-cov ~=6.0.0",
     # Linting and type checking
     "ruff ~=0.14.0",
diff --git a/program-model/uv.lock b/program-model/uv.lock
index 7725f4f2..162fda76 100644
--- a/program-model/uv.lock
+++ b/program-model/uv.lock
@@ -1206,7 +1206,7 @@ requires-dist = [
 
 [package.metadata.requires-dev]
 dev = [
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 version = "2.12.1"
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index ffb08439..a6ab7e07 100644
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