diff --git a/extra/python-gpep517/checksums b/extra/python-gpep517/checksums
index dc13e862..69787d94 100644
--- a/extra/python-gpep517/checksums
+++ b/extra/python-gpep517/checksums
@@ -1,3 +1,3 @@
-1b667c868cac2666242d3f655619286e2da926667f407ef992fba29caa80d80fe9
+7b319ca51875c6a32d5bb46e246c3217719cd616613ad046060b937d78e0c2defa
 482b3562a2d6a9b273e8e2049bc29136643cad5002495cff0e1169c53ea8b6eb2b
 236459f14ba3e57226f6c21df619d2ad6198b9d68a5af131c05f98faff05a167d2
diff --git a/extra/python-gpep517/sources b/extra/python-gpep517/sources
index ed468b94..eea40c30 100644
--- a/extra/python-gpep517/sources
+++ b/extra/python-gpep517/sources
@@ -1,3 +1,3 @@
-https://github.com/mgorny/gpep517/archive/v15/gpep517-v15.tar.gz
+https://github.com/mgorny/gpep517/archive/v16/gpep517-v16.tar.gz
 files/gpep517.bin
 patches/default-bytecode-levels.patch
diff --git a/extra/python-gpep517/version b/extra/python-gpep517/version
index 4955335c..acceb6ef 100644
--- a/extra/python-gpep517/version
+++ b/extra/python-gpep517/version
@@ -1 +1 @@
-15 2
+16 1