diff --git a/srcpkgs/attic/patches/openssl.diff b/srcpkgs/attic/patches/openssl.diff
new file mode 100644
index 00000000000..c289a1dc267
--- /dev/null
+++ b/srcpkgs/attic/patches/openssl.diff
@@ -0,0 +1,59 @@
+--- attic/crypto.pyx
++++ attic/crypto.pyx
+@@ -23,8 +23,9 @@ cdef extern from "openssl/evp.h":
+         pass
+     const EVP_MD *EVP_sha256()
+     const EVP_CIPHER *EVP_aes_256_ctr()
+-    void EVP_CIPHER_CTX_init(EVP_CIPHER_CTX *a)
+-    void EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *a)
++    EVP_CIPHER_CTX *EVP_CIPHER_CTX_new()
++    const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *a)
++    void EVP_CIPHER_CTX_free(EVP_CIPHER_CTX *a)
+ 
+     int EVP_EncryptInit_ex(EVP_CIPHER_CTX *ctx,const EVP_CIPHER *cipher, ENGINE *impl,
+                            const unsigned char *key, const unsigned char *iv)
+@@ -84,16 +85,16 @@ def get_random_bytes(n):
+ cdef class AES:
+     """A thin wrapper around the OpenSSL EVP cipher API
+     """
+-    cdef EVP_CIPHER_CTX ctx
++    cdef EVP_CIPHER_CTX * ctx
+ 
+     def __cinit__(self, key, iv=None):
+-        EVP_CIPHER_CTX_init(&self.ctx)
+-        if not EVP_EncryptInit_ex(&self.ctx, EVP_aes_256_ctr(), NULL, NULL, NULL):
++        self.ctx = EVP_CIPHER_CTX_new();
++        if not EVP_EncryptInit_ex(self.ctx, EVP_aes_256_ctr(), NULL, NULL, NULL):
+             raise Exception('EVP_EncryptInit_ex failed')
+         self.reset(key, iv)
+ 
+     def __dealloc__(self):
+-        EVP_CIPHER_CTX_cleanup(&self.ctx)
++        EVP_CIPHER_CTX_free(self.ctx)
+ 
+     def reset(self, key=None, iv=None):
+         cdef const unsigned char *key2 = NULL
+@@ -102,12 +103,12 @@ cdef class AES:
+             key2 = key
+         if iv:
+             iv2 = iv
+-        if not EVP_EncryptInit_ex(&self.ctx, NULL, NULL, key2, iv2):
++        if not EVP_EncryptInit_ex(self.ctx, NULL, NULL, key2, iv2):
+             raise Exception('EVP_EncryptInit_ex failed')
+ 
+     @property
+     def iv(self):
+-        return self.ctx.iv[:16]
++        return EVP_CIPHER_CTX_iv(self.ctx)[:16]
+ 
+     def encrypt(self, data):
+         cdef int inl = len(data)
+@@ -116,7 +117,7 @@ cdef class AES:
+         if not out:
+             raise MemoryError
+         try:
+-            if not EVP_EncryptUpdate(&self.ctx, out, &outl, data, inl):
++            if not EVP_EncryptUpdate(self.ctx, out, &outl, data, inl):
+                 raise Exception('EVP_EncryptUpdate failed')
+             return out[:inl]
+         finally:
diff --git a/srcpkgs/attic/template b/srcpkgs/attic/template
index 1b08972b359..153c0341edc 100644
--- a/srcpkgs/attic/template
+++ b/srcpkgs/attic/template
@@ -1,11 +1,11 @@
 # Template file for 'attic'
 pkgname=attic
 version=0.16
-revision=19
+revision=20
 wrksrc="Attic-$version"
 build_style=python3-module
 hostmakedepends="python3-setuptools python3-Cython python3-Sphinx"
-makedepends="python3-devel libressl-devel acl-devel"
+makedepends="python3-devel openssl-devel acl-devel"
 depends="python3-msgpack python3-llfuse"
 short_desc="Deduplicating backup program for efficient and secure backups"
 maintainer="Leah Neukirchen <leah@vuxu.org>"