diff --git a/extra/python-flit-core/build b/extra/python-flit-core/build
index 5bf0443b..89f6c6b4 100755
--- a/extra/python-flit-core/build
+++ b/extra/python-flit-core/build
@@ -1,8 +1,8 @@
 #!/bin/sh -e
 
-rm -rf flit_core/flit_core/vendor/
 python flit_core/build_dists.py
 
 python -m installer -d "$1" "flit_core/dist/flit_core-$2-py3-none-any.whl"
 
 rm -rf "$1"/usr/lib/python3*/site-packages/flit_core/tests
+rm -rf "$1"/usr/lib/python3*/site-packages/flit_core/vendor
diff --git a/extra/python-flit-core/checksums b/extra/python-flit-core/checksums
index 48f015d9..68e2fb53 100644
--- a/extra/python-flit-core/checksums
+++ b/extra/python-flit-core/checksums
@@ -1 +1 @@
-f76bccf9748940e4d468c18bcf4ae6ccb201500c89de0b523d4df40e376a852c99
+fab5875676ddf70e8327f92e20144e58b73d855e63ede830ba442a0f123e666940
diff --git a/extra/python-flit-core/sources b/extra/python-flit-core/sources
index 10afb00c..c3aa5b1f 100644
--- a/extra/python-flit-core/sources
+++ b/extra/python-flit-core/sources
@@ -1 +1 @@
-https://files.pythonhosted.org/packages/source/f/flit/flit-3.10.1.tar.gz
+https://files.pythonhosted.org/packages/source/f/flit/flit-3.11.0.tar.gz
diff --git a/extra/python-flit-core/version b/extra/python-flit-core/version
index 4c3b936c..22ff9f8a 100644
--- a/extra/python-flit-core/version
+++ b/extra/python-flit-core/version
@@ -1 +1 @@
-3.10.1 2
+3.11.0 1