diff --git a/math/py-pymc3/Makefile b/math/py-pymc3/Makefile
index cabdbcbb3aa4..32c16ffe4298 100644
--- a/math/py-pymc3/Makefile
+++ b/math/py-pymc3/Makefile
@@ -2,7 +2,7 @@
 
 PORTNAME=	pymc3
 DISTVERSIONPREFIX=	v
-DISTVERSION=	3.9.3
+DISTVERSION=	3.10.0
 CATEGORIES=	math python
 PKGNAMEPREFIX=	${PYTHON_PKGNAMEPREFIX}
 
@@ -14,6 +14,7 @@ LICENSE_FILE=	${WRKSRC}/LICENSE
 
 RUN_DEPENDS=	${PYNUMPY} \
 		${PYTHON_PKGNAMEPREFIX}arviz>=0.9.0:math/py-arviz@${PY_FLAVOR} \
+		${PYTHON_PKGNAMEPREFIX}dill>0:devel/py-dill@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}fastprogress>=0.2.0:devel/py-fastprogress@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}h5py>=2.7.0:science/py-h5py@${PY_FLAVOR} \
 		${PYTHON_PKGNAMEPREFIX}pandas>=0.18.0:math/py-pandas@${PY_FLAVOR} \
diff --git a/math/py-pymc3/distinfo b/math/py-pymc3/distinfo
index 12517ab7c351..3ff2ab6da20e 100644
--- a/math/py-pymc3/distinfo
+++ b/math/py-pymc3/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1597179359
-SHA256 (pymc-devs-pymc3-v3.9.3_GH0.tar.gz) = 4b023a694cb569aaaa4a7268708f9db89a723c7f6baa28023f2f5fabd1384d5c
-SIZE (pymc-devs-pymc3-v3.9.3_GH0.tar.gz) = 76588105
+TIMESTAMP = 1607490801
+SHA256 (pymc-devs-pymc3-v3.10.0_GH0.tar.gz) = a9dc24ac4ebf62b02bd659f1a4b8e7fffaef32fc9ac1b87d32e5a540aa55bf42
+SIZE (pymc-devs-pymc3-v3.10.0_GH0.tar.gz) = 104557369