diff --git a/contributions/CONTRIBUTIONS.md b/contributions/CONTRIBUTIONS.md
index ebefaa9..909c103 100644
--- a/contributions/CONTRIBUTIONS.md
+++ b/contributions/CONTRIBUTIONS.md
@@ -19,9 +19,10 @@ census_albertorg0.zkey:f13500819530a822e00daf5638c870d50a4f1ee12a08f3c09739aa329
 census_G10h4ck.zkey:989309af9e12954453ca658d5bd98d4edade22c46054565fdb1701f9c4082e3ca5fa5420baa2c2c5252d2afc210c7c4d060b6bcca6ebea9d078ead6188b653a5
 census_marianmoldovan.zkey:b3405ceaab46749936f8d23f51087b23707ea8eed14a5885e4d67ea6a6b8a2794263c61274e471f74d299586c2c5c0bc8d7e07cd7807ee6bcfb6df261151ebe5
 census_ilario.zkey:56f3a4cec36aba2f7aad6c13a6341e8d212540a973d9b8a0eba93cc529c6b6fd8544bbb7aa2f7be351f3e0f55328534823600528823606465a8c1136eab05c39
+census_marcvelmer.zkey:6a0bc67ac74089712f039620e4a13455f3c0610d7478bbf295932355b4409f9cfe26f50a52bcbc15f746d1d8d65924a80856be98a1b8998a27d159c07326fe44
 ```
 
 ### Last contribution
 ```
-census_ilario.zkey:56f3a4cec36aba2f7aad6c13a6341e8d212540a973d9b8a0eba93cc529c6b6fd8544bbb7aa2f7be351f3e0f55328534823600528823606465a8c1136eab05c39
+census_marcvelmer.zkey:6a0bc67ac74089712f039620e4a13455f3c0610d7478bbf295932355b4409f9cfe26f50a52bcbc15f746d1d8d65924a80856be98a1b8998a27d159c07326fe44
 ```
diff --git a/contributions/census_marcvelmer.zkey b/contributions/census_marcvelmer.zkey
new file mode 100644
index 0000000..c152e8d
--- /dev/null
+++ b/contributions/census_marcvelmer.zkey
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:60b488c9c09410c190ae5b7ba1da3a2b9caf9f457093ae8b581ce7e94da0184d
+size 55243360