diff --git a/.github/workflows/build-and-push.yml b/.github/workflows/build-and-push.yml
index e365ff8..4c18207 100644
--- a/.github/workflows/build-and-push.yml
+++ b/.github/workflows/build-and-push.yml
@@ -22,7 +22,7 @@ jobs:
       matrix:
         include:
           - arch: amd64
-            toxenv: py36,py38,py39,py310,py311,py312,py313,py314,pypy,pypy39,pypy310,pypy311
+            toxenv: py36,py38,py39,py310,py311,py312,py313,py314,py315,pypy,pypy39,pypy310,pypy311
           - arch: arm64
             toxenv: py312
           - arch: ppc64le
diff --git a/Dockerfile b/Dockerfile
index edb1232..f7e61d9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -24,6 +24,8 @@ RUN dnf update -y \
     python3.13-tkinter \
     python3.14-devel \
     python3.14-tkinter \
+    python3.15-devel \
+    python3.15-tkinter \
     python3-pip \
     /usr/bin/tox \
     /usr/bin/virtualenv \
diff --git a/README.md b/README.md
index c0df18d..c9f3db8 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ N goes EOL.
 # Installed packages
 
 On top of stable Fedora, this Docker image contains:
-- Python 3.6, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14
+- Python 3.6, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14, 3.15
 - Pypy2, Pypy3.9, Pypy3.10 and Pypy3.11
 - python3-pip
 - gcc, gcc-c++, git-core and make