diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a2b612a3285..dc78b78cc1b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
 
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           cache: 'pip'
 
       - uses: actions/setup-node@v5
diff --git a/.github/workflows/merge_upstream_master.yml b/.github/workflows/merge_upstream_master.yml
index d9be8ae50d1..606e97a2c42 100644
--- a/.github/workflows/merge_upstream_master.yml
+++ b/.github/workflows/merge_upstream_master.yml
@@ -61,7 +61,7 @@ jobs:
 
       - uses: actions/setup-python@v6
         with:
-          python-version: '3.11'
+          python-version: '3.13'
           cache: 'pip'
 
       - name: Perform Merge
diff --git a/_build_dependencies.sh b/_build_dependencies.sh
index 3dafe8c19a1..a349e25222b 100644
--- a/_build_dependencies.sh
+++ b/_build_dependencies.sh
@@ -12,6 +12,6 @@ export STABLE_BYOND_MINOR=1666
 # Beta Byond Minor - Uncomment and update if beta cycle active
 #export BETA_BYOND_MINOR=1657
 # Python version for mapmerge and other tools
-export PYTHON_VERSION=3.11.6
+export PYTHON_VERSION=3.13.5
 # RUSTG version
 export RUSTG_VERSION=v3.4.0-P
diff --git a/tools/bootstrap/python311._pth b/tools/bootstrap/python313._pth
similarity index 63%
rename from tools/bootstrap/python311._pth
rename to tools/bootstrap/python313._pth
index abba38c9271..02d92347844 100644
--- a/tools/bootstrap/python311._pth
+++ b/tools/bootstrap/python313._pth
@@ -1,4 +1,4 @@
-python311.zip
+python313.zip
 .
 ..\..\..
 
diff --git a/tools/bootstrap/python_.ps1 b/tools/bootstrap/python_.ps1
index 47d1d4b46de..2cf0638d350 100644
--- a/tools/bootstrap/python_.ps1
+++ b/tools/bootstrap/python_.ps1
@@ -50,7 +50,7 @@ if (!(Test-Path $PythonExe -PathType Leaf)) {
 	[System.IO.Compression.ZipFile]::ExtractToDirectory($Archive, $PythonDir)
 
 	# Copy a ._pth file without "import site" commented, so pip will work
-	Copy-Item "$Bootstrap/python311._pth" $PythonDir `
+	Copy-Item "$Bootstrap/python313._pth" $PythonDir `
 		-ErrorAction Stop
 
 	Remove-Item $Archive
diff --git a/tools/requirements.txt b/tools/requirements.txt
index f8f62d8f790..8c81ca53dd6 100644
--- a/tools/requirements.txt
+++ b/tools/requirements.txt
@@ -1,11 +1,11 @@
-pygit2>=1.13.1
-bidict>=0.22.1
-Pillow>=10.3.0
-json5>=0.9.14
+pygit2==1.18.0
+bidict==0.23.1
+Pillow==11.3.0
+json5==0.12.0
 
 # changelogs
-PyYaml>=6.0.1 # maplint also
-beautifulsoup4>=4.12.2
+PyYaml==6.0.2 # maplint also
+beautifulsoup4==4.13.4
 
 # various CI checks
 avulto==0.1.17