diff --git a/src/testdir/test_crypt.vim b/src/testdir/test_crypt.vim
index a5e3b1a..e2eaed8 100644
--- a/src/testdir/test_crypt.vim
+++ b/src/testdir/test_crypt.vim
@@ -290,7 +290,11 @@
   " encrypted using xchacha20
   call assert_match("\[xchachav2\]", execute(':messages'))
   bw!
-  call feedkeys(":verbose :sp Xcrypt_sodium_v2.txt\<CR>sodium\<CR>", 'xt')
+	try
+		call feedkeys(":verbose :sp Xcrypt_sodium_v2.txt\<CR>sodium\<CR>", 'xt')
+  catch /^Vim\%((\a\+)\)\=:E1230:/ " sodium_mlock() not possible, may happen at Github CI
+    throw 'Skipped: sodium_mlock() not possible'
+  endtry
   " successfully decrypted
   call assert_equal(range(1, 4000)->map( {_, v -> string(v)}), getline(1,'$'))
   call assert_match('xchacha20v2: using default \w\+ "\d\+" for Key derivation.', execute(':messages'))