diff --git a/Dockerfile b/Dockerfile
index 9e92b78..e46a824 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -61,19 +61,19 @@ RUN apt update && \
         make tk-dev unzip wget xz-utils zlib1g-dev
 
 
-# Install Python 3.12.x
+# Install Python 3.13.x
 # https://www.python.org/downloads/
 RUN cd /tmp && \
-    curl --remote-name https://www.python.org/ftp/python/3.12.10/Python-3.12.10.tgz && \
-    tar xzf Python-3.12.10.tgz && \
-    rm --force Python-3.12.10.tgz && \
-    cd Python-3.12.10 && \
+    curl --remote-name https://www.python.org/ftp/python/3.13.3/Python-3.13.3.tgz && \
+    tar xzf Python-3.13.3.tgz && \
+    rm --force Python-3.13.3.tgz && \
+    cd Python-3.13.3 && \
     CFLAGS="-Os" ./configure --disable-static --enable-optimizations --enable-shared --with-lto --without-tests && \
     ./configure && \
     make && \
     make install && \
     cd .. && \
-    rm --force --recursive Python-3.12.10 && \
+    rm --force --recursive Python-3.13.3 && \
     ln --relative --symbolic /usr/local/bin/pip3 /usr/local/bin/pip && \
     ln --relative --symbolic /usr/local/bin/python3 /usr/local/bin/python && \
     pip3 install --no-cache-dir --upgrade pip