diff --git a/.cursor/rules/launchpad.mdc b/.cursor/rules/launchpad.mdc
index 40afbce6..6d4afd63 100644
--- a/.cursor/rules/launchpad.mdc
+++ b/.cursor/rules/launchpad.mdc
@@ -23,7 +23,7 @@ This is a Python CLI tool for analyzing iOS and Android app bundle sizes, simila
 
 ### Python
 
-- Use modern Python 3.11+ with type hints
+- Use modern Python 3.13+ with type hints
 - Follow PEP 8 and ruff formatting (line length 120)
 - Use `pytest` for testing
 - Use `click` for CLI interface
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 36859d67..d8b6edd9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: "3.12"
+          python-version: "3.13"
 
       - name: Install uv
         uses: astral-sh/setup-uv@v7
@@ -53,7 +53,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: "3.12"
+          python-version: "3.13"
 
       - name: Install uv
         uses: astral-sh/setup-uv@v7
@@ -95,7 +95,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: "3.12"
+          python-version: "3.13"
 
       - name: Install uv
         uses: astral-sh/setup-uv@v7
@@ -147,7 +147,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: "3.12"
+          python-version: "3.13"
 
       - name: Install uv
         uses: astral-sh/setup-uv@v7
diff --git a/.github/workflows/image.yml b/.github/workflows/image.yml
index 9f8ed9d6..1305b787 100644
--- a/.github/workflows/image.yml
+++ b/.github/workflows/image.yml
@@ -34,7 +34,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: "3.12"
+          python-version: "3.13"
 
       - name: Install uv
         uses: astral-sh/setup-uv@v7
@@ -111,7 +111,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: "3.12"
+          python-version: "3.13"
 
       - name: Install uv
         uses: astral-sh/setup-uv@v7
diff --git a/CLAUDE.md b/CLAUDE.md
index 3ddc15b0..d0adb51d 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -43,7 +43,7 @@
 
 ### Technology Stack
 
-#### Backend (Python 3.11+)
+#### Backend (Python 3.13+)
 - **LIEF**: Binary analysis library for Mach-O/ELF parsing
 - **Pillow**: Image processing and optimization
 - **Kafka**: Event streaming via confluent-kafka and sentry-arroyo
diff --git a/DEVELOPMENT.md b/DEVELOPMENT.md
index 53ea8467..b7debc6c 100644
--- a/DEVELOPMENT.md
+++ b/DEVELOPMENT.md
@@ -42,10 +42,9 @@ Run `make help` to see all available commands.
 
 ## Requirements
 
-- Python 3.11 or 3.12
+- Python 3.13
 - Make
 
 ## Style
 
 - Prefer empty `__init__.py` files. See https://github.com/getsentry/launchpad/pull/56.
-
diff --git a/Dockerfile b/Dockerfile
index 910a1bbd..2478a3fb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -26,8 +26,8 @@ RUN git clone https://github.com/apple/swift-corelibs-libdispatch.git && \
     make -j$(nproc) && \
     make install
 
-# Use Python 3.12 slim image
-FROM python:3.12-slim-bookworm
+# Use Python 3.13 slim image
+FROM python:3.13-slim-bookworm
 
 # Build argument to determine if this is a test build
 ARG TEST_BUILD=false
diff --git a/pyproject.toml b/pyproject.toml
index 13247309..eb41d806 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,12 +20,11 @@ classifiers = [
     "Operating System :: MacOS",
     "Operating System :: POSIX :: Linux",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.11",
-    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Topic :: Software Development :: Build Tools",
     "Topic :: System :: Archiving",
 ]
-requires-python = ">=3.11"
+requires-python = ">=3.13"
 
 [project.scripts]
 launchpad = "launchpad.cli:main"
@@ -39,7 +38,7 @@ where = ["src"]
 
 [tool.ruff]
 line-length = 120
-target-version = "py311"
+target-version = "py313"
 
 [tool.ruff.lint]
 # Enable pycodestyle (E), Pyflakes (F), and isort (I) by default
diff --git a/scripts/strip/Dockerfile.cctools b/scripts/strip/Dockerfile.cctools
index 48c9efd5..31fc725a 100644
--- a/scripts/strip/Dockerfile.cctools
+++ b/scripts/strip/Dockerfile.cctools
@@ -55,7 +55,7 @@ RUN ./configure --prefix=/out
 RUN make -j"$(nproc)" && make install-strip
 
 # Verify the binary is working
-FROM --platform=linux/amd64 python:3.12-slim-bookworm AS verify
+FROM --platform=linux/amd64 python:3.13-slim-bookworm AS verify
 # Install runtime dependencies needed by the strip binaries
 RUN apt-get update && apt-get install -y --no-install-recommends \
     libbsd0 \