diff --git a/build/pkgs/cypari/checksums.ini b/build/pkgs/cypari/checksums.ini
index 8bedd4cf52d..d183b3c567a 100644
--- a/build/pkgs/cypari/checksums.ini
+++ b/build/pkgs/cypari/checksums.ini
@@ -1,4 +1,4 @@
 tarball=cypari2-VERSION.tar.gz
-sha1=4cb5fc43899852b7fc0c0175e610318c38f0caac
-sha256=1a25865c34f20b1dc95830798e34ab6436e278b8e0c80dc7bf0ab34c5db03ab8
+sha1=4e9f14d218bc1cea29e03a2ceec9bf3dfbfd5eb3
+sha256=817606bf661b71d33e1d012421907a4f8fb09dd81b7d3e3ae179b3978020bbf1
 upstream_url=https://pypi.io/packages/source/c/cypari2/cypari2-VERSION.tar.gz
diff --git a/build/pkgs/cypari/dependencies b/build/pkgs/cypari/dependencies
index 69dfe7e7d8a..cbf047c8027 100644
--- a/build/pkgs/cypari/dependencies
+++ b/build/pkgs/cypari/dependencies
@@ -1,4 +1,4 @@
- cython pari cysignals | $(PYTHON_TOOLCHAIN) $(PYTHON)
+pari cysignals | $(PYTHON_TOOLCHAIN) cython $(PYTHON)
 
 ----------
 All lines of this file are ignored except the first.
diff --git a/build/pkgs/cypari/package-version.txt b/build/pkgs/cypari/package-version.txt
index cd57a8b95d6..ccbccc3dc62 100644
--- a/build/pkgs/cypari/package-version.txt
+++ b/build/pkgs/cypari/package-version.txt
@@ -1 +1 @@
-2.1.5
+2.2.0
diff --git a/build/pkgs/cypari/patches/trashcan.patch b/build/pkgs/cypari/patches/trashcan.patch
deleted file mode 100644
index f4918d4cd39..00000000000
--- a/build/pkgs/cypari/patches/trashcan.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-commit 78e6dcf937c960c51132132e14f86bddbbe5b7d9
-Author: Jeroen Demeyer <J.Demeyer@UGent.be>
-Date:   Tue Feb 19 11:50:49 2019 +0100
-
-    Use the trashcan for Gen
-
-diff --git a/cypari2/gen.pxd b/cypari2/gen.pxd
-index 2ac0669..664d57d 100644
---- a/cypari2/gen.pxd
-+++ b/cypari2/gen.pxd
-@@ -1,3 +1,4 @@
-+cimport cython
- from cpython.object cimport PyObject
- from .types cimport GEN, pari_sp
- 
-diff --git a/cypari2/gen.pyx b/cypari2/gen.pyx
-index d268cf1..687f5b2 100644
---- a/cypari2/gen.pyx
-+++ b/cypari2/gen.pyx
-@@ -135,6 +135,7 @@ cdef extern from *:
-     GEN new_nfeltup(GEN nf, GEN x, GEN zknf)
- 
- 
-+@cython.trashcan(True)
- cdef class Gen(Gen_base):
-     """
-     Wrapper for a PARI ``GEN`` with memory management.
-diff --git a/cypari2/pari_instance.pyx b/cypari2/pari_instance.pyx
-index ba82438..d13bc45 100644
---- a/cypari2/pari_instance.pyx
-+++ b/cypari2/pari_instance.pyx
-@@ -243,6 +243,15 @@ Reset default precision for the following tests:
- 
- >>> pari.set_real_precision_bits(53)
- 
-+Test the trashcan mechanism (without the trashcan, this would cause
-+a stack overflow):
-+
-+>>> pari.allocatemem(2**27, silent=True)
-+>>> L = [pari(i) for i in range(2**20)]
-+>>> x = pari.Pi()
-+>>> del L
-+>>> del x
-+
- Test that interrupts work properly:
- 
- >>> pari.allocatemem(8000000, 2**29)