diff --git a/.github/workflows/build-native-action.yml b/.github/workflows/build-native-action.yml
index 4a96ad4a..b0c70e0b 100644
--- a/.github/workflows/build-native-action.yml
+++ b/.github/workflows/build-native-action.yml
@@ -37,6 +37,11 @@ jobs:
       RELENV_DATA: ${{ github.workspace }}
 
     steps:
+      - name: "Throttle Builds"
+        shell: bash
+        run: |
+          t=$(python3 -c 'import random, sys; sys.stdout.write(str(random.randint(0, 600)))'); echo "Sleeping $t seconds"; sleep "$t"
+
       - uses: actions/checkout@v3
 
       - name: Set up Python 3.10
@@ -96,6 +101,11 @@ jobs:
       RELENV_DATA: ${{ github.workspace }}
 
     steps:
+      - name: "Throttle Builds"
+        shell: bash
+        run: |
+          t=$(python3 -c 'import random, sys; sys.stdout.write(str(random.randint(0, 600)))'); echo "Sleeping $t seconds"; sleep "$t"
+
       - uses: actions/checkout@v3
 
       - name: Patch /usr/local
@@ -214,6 +224,11 @@ jobs:
       RELENV_DATA: ${{ github.workspace }}
 
     steps:
+      - name: "Throttle Builds"
+        shell: bash
+        run: |
+          t=$(python3 -c 'import random, sys; sys.stdout.write(str(random.randint(0, 600)))'); echo "Sleeping $t seconds"; sleep "$t"
+
       - uses: actions/checkout@v3
 
       - name: Set up Python 3.10
diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf54cb33..d7577c51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+0.20.5
+======
+
+* Update gdbm from 1.25 to 1.26
+* Update libffi from 3.5.1 to 3.5.2
+* Update readline from 8.2.13 to 8.3
+* Update sqlite from 3.50.2 to 3.50.4 
+
+
 0.20.4
 ======
 
diff --git a/relenv/_scripts/install_vc_build.ps1 b/relenv/_scripts/install_vc_build.ps1
index 19fe28b9..5528ca7e 100644
--- a/relenv/_scripts/install_vc_build.ps1
+++ b/relenv/_scripts/install_vc_build.ps1
@@ -150,7 +150,7 @@ if ( Test-Path -Path $MSBUILD_BIN ) {
                                 "--add Microsoft.VisualStudio.Component.VC.140", `
                                 "--lang en-US", `
                                 "--includeRecommended", `
-                                "--quiet", `
+                               # "--quiet", `
                                 "--wait" `
                   -Wait -WindowStyle Hidden
     if ( Test-Path -Path "$env:TEMP\build_tools\vs_buildtools.exe" ) {
diff --git a/relenv/build/__init__.py b/relenv/build/__init__.py
index 098510a5..6de0b692 100644
--- a/relenv/build/__init__.py
+++ b/relenv/build/__init__.py
@@ -13,7 +13,7 @@
 
 from ..pyversions import python_versions, Version
 
-from ..common import build_arch
+from ..common import build_arch, DEFAULT_PYTHON
 
 
 def platform_module():
@@ -58,7 +58,7 @@ def setup_parser(subparsers):
     )
     build_subparser.add_argument(
         "--python",
-        default="3.10.17",
+        default=DEFAULT_PYTHON,
         type=str,
         help="The python version [default: %(default)s]",
     )
diff --git a/relenv/build/darwin.py b/relenv/build/darwin.py
index c53d7651..11964697 100644
--- a/relenv/build/darwin.py
+++ b/relenv/build/darwin.py
@@ -99,8 +99,8 @@ def build_python(env, dirs, logfp):
     download={
         "url": "https://sqlite.org/2025/sqlite-autoconf-{version}.tar.gz",
         "fallback_url": "https://woz.io/relenv/dependencies/sqlite-autoconf-{version}.tar.gz",
-        "version": "3500200",
-        "checksum": "f57c0e54fcddf91f73916987d5c52e743c8bfa76",
+        "version": "3500400",
+        "checksum": "145048005c777796dd8494aa1cfed304e8c34283",
     },
 )
 
diff --git a/relenv/build/linux.py b/relenv/build/linux.py
index 8b8d2afa..a0363487 100644
--- a/relenv/build/linux.py
+++ b/relenv/build/linux.py
@@ -500,8 +500,8 @@ def build_python(env, dirs, logfp):
     build_func=build_sqlite,
     download={
         "url": "https://sqlite.org/2025/sqlite-autoconf-{version}.tar.gz",
-        "version": "3500200",
-        "checksum": "f57c0e54fcddf91f73916987d5c52e743c8bfa76",
+        "version": "3500400",
+        "checksum": "145048005c777796dd8494aa1cfed304e8c34283",
         "checkfunc": sqlite_version,
         "checkurl": "https://sqlite.org/",
     },
@@ -523,8 +523,8 @@ def build_python(env, dirs, logfp):
     build_func=build_gdbm,
     download={
         "url": "https://ftp.gnu.org/gnu/gdbm/gdbm-{version}.tar.gz",
-        "version": "1.25",
-        "checksum": "d55bdf2bb5f92f80006166dd8a8323cb2a428bd1",
+        "version": "1.26",
+        "checksum": "6cee3657de948e691e8df26509157be950cef4d4",
         "checkfunc": tarball_version,
     },
 )
@@ -548,8 +548,8 @@ def build_python(env, dirs, logfp):
     build_libffi,
     download={
         "url": "https://github.com/libffi/libffi/releases/download/v{version}/libffi-{version}.tar.gz",
-        "version": "3.5.1",
-        "checksum": "5375e956b0d662e118e47758bd656861e43ba3ef",
+        "version": "3.5.2",
+        "checksum": "2bd35b135b0eeb5c631e02422c9dbe786ddb626a",
         "checkfunc": github_version,
         "checkurl": "https://github.com/libffi/libffi/releases/",
     },
@@ -595,8 +595,8 @@ def build_python(env, dirs, logfp):
     wait_on=["ncurses"],
     download={
         "url": "https://ftp.gnu.org/gnu/readline/readline-{version}.tar.gz",
-        "version": "8.2.13",
-        "checksum": "5ffb6a334c2422acbe8f4d2cb11e345265c8d930",
+        "version": "8.3",
+        "checksum": "2c05ae9350b695f69d70b47f17f092611de2081f",
         "checkfunc": tarball_version,
     },
 )
diff --git a/relenv/build/windows.py b/relenv/build/windows.py
index 4bedaf9c..861a1337 100644
--- a/relenv/build/windows.py
+++ b/relenv/build/windows.py
@@ -36,6 +36,44 @@ def populate_env(env, dirs):
     env["MSBUILDDISABLENODEREUSE"] = "1"
 
 
+def patch_file(path, old, new):
+    """
+    Search a file line by line for a string to replace.
+
+    :param path: Location of the file to search
+    :type path: str
+    :param old: The value that will be replaced
+    :type path: str
+    :param new: The value that will replace the 'old' value.
+    :type path: str
+    """
+    import re
+
+    with open(path, "r") as fp:
+        content = fp.read()
+    new_content = ""
+    for line in content.splitlines():
+        re.sub(old, new, line)
+        new_content += line + os.linesep
+    with open(path, "w") as fp:
+        fp.write(new_content)
+
+
+def override_dependency(source, old, new):
+    """
+    Overwrite a dependency string for Windoes PCBuild.
+
+    :param source: Python's source directory
+    :type path: str
+    :param old: Regular expression to search for
+    :type path: str
+    :param new: Replacement text
+    :type path: str
+    """
+    patch_file(source / "PCbuild" / "python.props", old, new)
+    patch_file(source / "PCbuild" / "get_externals.bat", old, new)
+
+
 def build_python(env, dirs, logfp):
     """
     Run the commands to build Python.
@@ -47,6 +85,13 @@ def build_python(env, dirs, logfp):
     :param logfp: A handle for the log file
     :type logfp: file
     """
+    # Override default versions
+    if env["RELENV_PY_MAJOR_VERSION"] in [
+        "3.10",
+        "3.11",
+    ]:
+        override_dependency(dirs.source, r"sqlite-\d+.\d+.\d+.\d+", "sqlite-3.50.4.0")
+
     arch_to_plat = {
         "amd64": "x64",
         "x86": "win32",
diff --git a/relenv/common.py b/relenv/common.py
index 6cb5bde8..7b5200f8 100644
--- a/relenv/common.py
+++ b/relenv/common.py
@@ -18,10 +18,12 @@
 import time
 
 # relenv package version
-__version__ = "0.20.4"
+__version__ = "0.20.5"
 
 MODULE_DIR = pathlib.Path(__file__).resolve().parent
 
+DEFAULT_PYTHON = "3.10.18"
+
 LINUX = "linux"
 WIN32 = "win32"
 DARWIN = "darwin"
diff --git a/relenv/fetch.py b/relenv/fetch.py
index 31c084b4..403e0201 100644
--- a/relenv/fetch.py
+++ b/relenv/fetch.py
@@ -11,6 +11,7 @@
 from .common import (
     CHECK_HOSTS,
     DATA_DIR,
+    DEFAULT_PYTHON,
     __version__,
     build_arch,
     check_url,
@@ -39,7 +40,7 @@ def setup_parser(subparsers):
     )
     subparser.add_argument(
         "--python",
-        default="3.10.18",
+        default=DEFAULT_PYTHON,
         type=str,
         help="The python version [default: %(default)s]",
     )