diff --git a/.github/workflows/slow-tests.yml b/.github/workflows/slow-tests.yml
index 84d2481c..b4ec2323 100644
--- a/.github/workflows/slow-tests.yml
+++ b/.github/workflows/slow-tests.yml
@@ -14,7 +14,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: '3.10'
+        python-version: '3.11'
 
     - name: Install nose2
       run: |
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 226cb35e..9375511f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: ['3.7', '3.8', '3.9', '3.10']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
     steps:
     - uses: actions/checkout@v2
 
diff --git a/Makefile b/Makefile
index 511b54b3..91f5f3cd 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ usage:
 	@echo "  clean         clean the documentation and man pages"
 	@echo "  hh            build the Hungry Horace disassembly"
 	@echo "  test[-all]    run core/all tests with default Python 3 interpreter"
-	@echo "  test3X[-all]  run core/all tests with Python 3.X (7<=X<=10)"
+	@echo "  test3X[-all]  run core/all tests with Python 3.X (7<=X<=11)"
 	@echo "  test-cover    run core tests with coverage info"
 	@echo "  test-slow     run slow tests with default Python 3 interpreter"
 	@echo "  release       build a SkoolKit release tarball and zip archive"
diff --git a/setup.cfg b/setup.cfg
index 6cb3e5bb..9540fbe8 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -18,6 +18,7 @@ classifiers =
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
     Topic :: Software Development :: Disassemblers
     Topic :: Utilities
 
diff --git a/tools/disassembly.mk b/tools/disassembly.mk
index 80200672..26fc6c46 100644
--- a/tools/disassembly.mk
+++ b/tools/disassembly.mk
@@ -13,7 +13,7 @@ usage:
 	@echo "  html      build the HTML disassembly"
 	@echo "  asm       build the ASM disassembly"
 	@echo "  test      run tests with default Python 3 interpreter"
-	@echo "  test3X    run tests with Python 3.X (7<=X<=10)"
+	@echo "  test3X    run tests with Python 3.X (7<=X<=11)"
 	@$(MAKE) -s _targets
 	@echo ""
 	@echo "Variables:"
diff --git a/tools/drelease-functions b/tools/drelease-functions
index a108efdd..1d3c570a 100644
--- a/tools/drelease-functions
+++ b/tools/drelease-functions
@@ -232,7 +232,7 @@ test_disassembly() {
   cp -p $SKOOLKIT_HOME/tests/disassemblytest.py tests
   mkdir tools
   cp -p $SKOOLKIT_TOOLS/{disassembly.mk,testwriter.py} tools
-  for v in 37 38 39 310; do
+  for v in 37 38 39 310 311; do
     _exec "Running $GAMENAME disassembly tests (SkoolKit $SKOOLKIT_VERSION, Python ${v:0:1}.${v:1})" "SKOOLKIT_HOME=$(pwd) make -C $DHOME test$v" $logdir/test$v.log
   done
 }
diff --git a/tools/skrelease b/tools/skrelease
index d67daedf..dc8f68d1 100755
--- a/tools/skrelease
+++ b/tools/skrelease
@@ -234,7 +234,7 @@ test_disassemblies() {
   btslog=$BACKTOSKOOL_HOME/build/tests.log
   mkdir -p $CONTACTSAMCRUISE_HOME/build
   csclog=$CONTACTSAMCRUISE_HOME/build/tests.log
-  targets="test37 test38 test39 test310"
+  targets="test37 test38 test39 test310 test311"
 
   make -C $HUNGRYHORACE_HOME $targets &> $hhlog & PIDhh=$!
   make -C $MANICMINER_HOME $targets &> $mmlog & PIDmm=$!