diff --git a/science/py-thewalrus/Makefile b/science/py-thewalrus/Makefile
index 2f524efcbf2a..c4a433ff554b 100644
--- a/science/py-thewalrus/Makefile
+++ b/science/py-thewalrus/Makefile
@@ -1,40 +1,39 @@
 PORTNAME=	thewalrus
 DISTVERSIONPREFIX=	v
-DISTVERSION=	0.20.0
-PORTREVISION=	1
+DISTVERSION=	0.21.0
 CATEGORIES=	science python
 #MASTER_SITES=	PYPI # doesn't contain tests
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Open source library for hafnian calculation
-WWW=		https://github.com/XanaduAI/thewalrus
+WWW=		https://the-walrus.readthedocs.io/en/latest/
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-PY_DEPENDS=	${PYNUMPY} \
-		${PYTHON_PKGNAMEPREFIX}dask>0:devel/py-dask@${PY_FLAVOR} \
+PY_DEPENDS=	${PYTHON_PKGNAMEPREFIX}dask>0:devel/py-dask@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}numba>0:devel/py-numba@${PY_FLAVOR} \
+		${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}scipy>0:science/py-scipy@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}sympy>0:math/py-sympy@${PY_FLAVOR}
 BUILD_DEPENDS=	${PY_DEPENDS}
 RUN_DEPENDS=	${PY_DEPENDS}
 TEST_DEPENDS=	gmake:devel/gmake \
 		${PYTHON_PKGNAMEPREFIX}flaky>=3.7.0:devel/py-flaky@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pytest-randomly>0:devel/py-pytest-randomly@${PY_FLAVOR}
 
 USES=		python
 USE_PYTHON=	distutils autoplist pytest
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	XanaduAI
 
 NO_ARCH=	yes
 
 BINARY_ALIAS=	python3=${PYTHON_CMD}
 
 do-test: # testsuite fails to run: https://github.com/XanaduAI/thewalrus/issues/344
 	@cd ${WRKSRC} && ${SETENV} ${MAKE_ENV} ${GMAKE} test
 
 .include <bsd.port.mk>
diff --git a/science/py-thewalrus/distinfo b/science/py-thewalrus/distinfo
index dea055f0063e..f8e6c0b34936 100644
--- a/science/py-thewalrus/distinfo
+++ b/science/py-thewalrus/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1678267124
-SHA256 (XanaduAI-thewalrus-v0.20.0_GH0.tar.gz) = 1a06309ac0e6895b7c2c9aab44473296e7626235fe823eaf7cd30c90550c053e
-SIZE (XanaduAI-thewalrus-v0.20.0_GH0.tar.gz) = 1746102
+TIMESTAMP = 1704960098
+SHA256 (XanaduAI-thewalrus-v0.21.0_GH0.tar.gz) = 09a9db5e5390a3941fbd587c2259c7d559b5383061d97020d301cedbde5c4f13
+SIZE (XanaduAI-thewalrus-v0.21.0_GH0.tar.gz) = 1751035