diff --git a/slides/safe-types-untyped-contexts.pdf b/slides/safe-types-untyped-contexts.pdf
deleted file mode 100644
index 1b45d333e8ef85754074c6394fedb96c0e1e2c54..0000000000000000000000000000000000000000
Binary files a/slides/safe-types-untyped-contexts.pdf and /dev/null differ