diff --git a/science/py-cirq-core/Makefile b/science/py-cirq-core/Makefile
index e9b14fb5916c..523851c23b2c 100644
--- a/science/py-cirq-core/Makefile
+++ b/science/py-cirq-core/Makefile
@@ -1,36 +1,37 @@
 PORTNAME=	cirq-core
 DISTVERSIONPREFIX=	v
-DISTVERSION=	0.12.0
+DISTVERSION=	0.13.1
 CATEGORIES=	science python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Framework for Noisy Intermediate Scale Quantum (NISQ) circuits
 
 LICENSE=	APACHE20
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}cirq-google>0:science/py-cirq-google@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}duet>=0.2.0:net/py-duet@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}matplotlib>0:math/py-matplotlib@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}networkx>0:math/py-networkx@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pandas>0:math/py-pandas@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}requests>0:www/py-requests@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}scipy>0:science/py-scipy@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}sortedcontainers>0:devel/py-sortedcontainers@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}sympy>0:math/py-sympy@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}tqdm>0:misc/py-tqdm@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}typing-extensions>0:devel/py-typing-extensions@${PY_FLAVOR}
 
 USES=		python:3.8+
 USE_PYTHON=	distutils autoplist
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	quantumlib
 GH_PROJECT=	Cirq
 
 WRKSRC_SUBDIR=	cirq-core
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>
diff --git a/science/py-cirq-core/distinfo b/science/py-cirq-core/distinfo
index 433602c9b2d5..b5915b166cf2 100644
--- a/science/py-cirq-core/distinfo
+++ b/science/py-cirq-core/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1628757410
-SHA256 (quantumlib-Cirq-v0.12.0_GH0.tar.gz) = ccf199aac17750420c26264f46456da1d85ad28ad74b2b6efc40c2d6fe96fede
-SIZE (quantumlib-Cirq-v0.12.0_GH0.tar.gz) = 7427269
+TIMESTAMP = 1636931795
+SHA256 (quantumlib-Cirq-v0.13.1_GH0.tar.gz) = cbb81296c9a5767a57e853ef2e88127059b6a64ae5ac4772e8b681096377900d
+SIZE (quantumlib-Cirq-v0.13.1_GH0.tar.gz) = 8002477