diff --git a/docs/developer-guide/introduction.mdx b/docs/developer-guide/introduction.mdx
index 2a4aa3abe1..947c4b4c71 100644
--- a/docs/developer-guide/introduction.mdx
+++ b/docs/developer-guide/introduction.mdx
@@ -163,6 +163,8 @@ These resources help ensure that AI-assisted contributions maintain consistency
 
 All dependencies are listed in the `pyproject.toml` file.
 
+The SDK keeps direct dependencies pinned to exact versions, while `poetry.lock` records the full resolved dependency tree and the artifact hashes for every package. Use `poetry install` from the lock file instead of ad-hoc `pip` installs when you need a reproducible environment.
+
 For proper code documentation, refer to the following and follow the code documentation practices presented there: [Google Python Style Guide - Comments and Docstrings](https://github.com/google/styleguide/blob/gh-pages/pyguide.md#38-comments-and-docstrings).
 
 <Note>
diff --git a/mcp_server/CHANGELOG.md b/mcp_server/CHANGELOG.md
index 21aa71dbf2..e94487e257 100644
--- a/mcp_server/CHANGELOG.md
+++ b/mcp_server/CHANGELOG.md
@@ -8,6 +8,10 @@ All notable changes to the **Prowler MCP Server** are documented in this file.
 
 - Resource events tool to get timeline for a resource (who, what, when) [(#10412)](https://github.com/prowler-cloud/prowler/pull/10412)
 
+### 🔄 Changed
+
+- Pin `httpx` dependency to exact version for reproducible installs [(#10593)](https://github.com/prowler-cloud/prowler/pull/10593)
+
 ### 🔐 Security
 
 - `authlib` bumped from 1.6.5 to 1.6.9 to fix CVE-2026-28802 (JWT `alg: none` validation bypass) [(#10579)](https://github.com/prowler-cloud/prowler/pull/10579)
diff --git a/mcp_server/pyproject.toml b/mcp_server/pyproject.toml
index 4ea4a9859e..2a6885fedb 100644
--- a/mcp_server/pyproject.toml
+++ b/mcp_server/pyproject.toml
@@ -5,7 +5,7 @@ requires = ["setuptools>=61.0", "wheel"]
 [project]
 dependencies = [
   "fastmcp==2.14.0",
-  "httpx>=0.28.0"
+  "httpx==0.28.1"
 ]
 description = "MCP server for Prowler ecosystem"
 name = "prowler-mcp"
diff --git a/mcp_server/uv.lock b/mcp_server/uv.lock
index ca1d9482be..bcff18e2d9 100644
--- a/mcp_server/uv.lock
+++ b/mcp_server/uv.lock
@@ -727,7 +727,7 @@ dependencies = [
 [package.metadata]
 requires-dist = [
     { name = "fastmcp", specifier = "==2.14.0" },
-    { name = "httpx", specifier = ">=0.28.0" },
+    { name = "httpx", specifier = "==0.28.1" },
 ]
 
 [[package]]
diff --git a/poetry.lock b/poetry.lock
index a76112ff76..c0ffadab6f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -808,7 +808,7 @@ description = "Timeout context manager for asyncio programs"
 optional = false
 python-versions = ">=3.8"
 groups = ["main"]
-markers = "python_version == \"3.10\""
+markers = "python_version < \"3.11\""
 files = [
     {file = "async_timeout-5.0.1-py3-none-any.whl", hash = "sha256:39e3809566ff85354557ec2398b55e096c8364bacac9405a7a1fa429e77fe76c"},
     {file = "async_timeout-5.0.1.tar.gz", hash = "sha256:d9321a7a3d5a6a5e187e824d2fa0793ce379a202935782d555d6e9d2735677d3"},
@@ -2379,7 +2379,7 @@ description = "Backport of PEP 654 (exception groups)"
 optional = false
 python-versions = ">=3.7"
 groups = ["main", "dev"]
-markers = "python_version == \"3.10\""
+markers = "python_version < \"3.11\""
 files = [
     {file = "exceptiongroup-1.3.0-py3-none-any.whl", hash = "sha256:4d111e6e0c13d0644cad6ddaa7ed0261a0b36971f6d23e7ec9b4b9097da78a10"},
     {file = "exceptiongroup-1.3.0.tar.gz", hash = "sha256:b241f5885f560bc56a59ee63ca4c6a8bfa46ae4ad651af316d4e81817bb9fd88"},
@@ -3938,7 +3938,7 @@ description = "Python package for creating and manipulating graphs and networks"
 optional = false
 python-versions = ">=3.10"
 groups = ["dev"]
-markers = "python_version == \"3.10\""
+markers = "python_version < \"3.11\""
 files = [
     {file = "networkx-3.4.2-py3-none-any.whl", hash = "sha256:df5d4365b724cf81b8c6a7312509d0c22386097011ad1abe274afd5e9d3bbc5f"},
     {file = "networkx-3.4.2.tar.gz", hash = "sha256:307c3669428c5362aab27c8a1260aa8f47c4e91d3891f48be0141738d8d053e1"},
@@ -6094,7 +6094,7 @@ description = "A lil' TOML parser"
 optional = false
 python-versions = ">=3.8"
 groups = ["dev"]
-markers = "python_version == \"3.10\""
+markers = "python_version < \"3.11\""
 files = [
     {file = "tomli-2.2.1-cp311-cp311-macosx_10_9_x86_64.whl", hash = "sha256:678e4fa69e4575eb77d103de3df8a895e1591b48e740211bd1067378c69e8249"},
     {file = "tomli-2.2.1-cp311-cp311-macosx_11_0_arm64.whl", hash = "sha256:023aa114dd824ade0100497eb2318602af309e5a55595f76b626d6d9f3b7b0a6"},
@@ -6743,4 +6743,4 @@ files = [
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.10,<3.13"
-content-hash = "91739ee5e383337160f9f08b76944ab4e8629c94084c8a9d115246862557f7c5"
+content-hash = "4050d3a95f5bc5448576ca0361fd899b35aa04de28d379cdfd3c2b0db67848ad"
diff --git a/prowler/CHANGELOG.md b/prowler/CHANGELOG.md
index 8f60b4a7d7..4835fe7f75 100644
--- a/prowler/CHANGELOG.md
+++ b/prowler/CHANGELOG.md
@@ -27,6 +27,7 @@ All notable changes to the **Prowler SDK** are documented in this file.
 
 - Added `internet-exposed` category to 13 AWS checks (CloudFront, CodeArtifact, EC2, EFS, RDS, SageMaker, Shield, VPC) [(#10502)](https://github.com/prowler-cloud/prowler/pull/10502)
 - Minimum Python version from 3.9 to 3.10 and updated classifiers to reflect supported versions (3.10, 3.11, 3.12) [(#10464)](https://github.com/prowler-cloud/prowler/pull/10464)
+- Pin direct SDK dependencies to exact versions and rely on `poetry.lock` artifact hashes for reproducible installs [(#10593)](https://github.com/prowler-cloud/prowler/pull/10593)
 - Sensitive CLI flags now warn when values are passed directly, recommending environment variables instead [(#10532)](https://github.com/prowler-cloud/prowler/pull/10532)
 
 ### 🐞 Fixed
diff --git a/pyproject.toml b/pyproject.toml
index a3b6f7dece..0db8391be7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,11 +49,11 @@ dependencies = [
   "cryptography==46.0.6",
   "dash==3.1.1",
   "dash-bootstrap-components==2.0.3",
-  "defusedxml>=0.7.1",
+  "defusedxml==0.7.1",
   "detect-secrets==1.5.0",
   "dulwich==0.23.0",
   "google-api-python-client==2.163.0",
-  "google-auth-httplib2>=0.1,<0.3",
+  "google-auth-httplib2==0.2.0",
   "jsonschema==4.23.0",
   "kubernetes==32.0.1",
   "markdown==3.10.2",
@@ -63,9 +63,9 @@ dependencies = [
   "openstacksdk==4.2.0",
   "pandas==2.2.3",
   "py-ocsf-models==0.8.1",
-  "pydantic (>=2.0,<3.0)",
+  "pydantic==2.12.5",
   "pygithub==2.8.0",
-  "python-dateutil (>=2.9.0.post0,<3.0.0)",
+  "python-dateutil==2.9.0.post0",
   "pytz==2025.1",
   "schema==0.7.5",
   "shodan==1.31.0",