diff --git a/grudge/execution.py b/grudge/execution.py
index 7c3fbb07846880b64f01cab250379a2afb8e33db..35d30ff91e60bed00261fa5d3bccdbba402f4e26 100644
--- a/grudge/execution.py
+++ b/grudge/execution.py
@@ -36,7 +36,7 @@ from grudge.function_registry import base_function_registry
 import logging
 logger = logging.getLogger(__name__)
 
-from loopy.version import LOOPY_USE_LANGUAGE_VERSION_2018_1  # noqa: F401
+from loopy.version import LOOPY_USE_LANGUAGE_VERSION_2018_2  # noqa: F401
 
 
 MPI_TAG_SEND_TAGS = 1729
diff --git a/grudge/function_registry.py b/grudge/function_registry.py
index 4d521560d8e6c83a8e9fa238b3c46955dc62e7a7..44e1ca8bdb3bf9f07a522258589902255ae93189 100644
--- a/grudge/function_registry.py
+++ b/grudge/function_registry.py
@@ -29,7 +29,7 @@ THE SOFTWARE.
 import loopy as lp
 import numpy as np
 
-from loopy.version import LOOPY_USE_LANGUAGE_VERSION_2018_1  # noqa
+from loopy.version import LOOPY_USE_LANGUAGE_VERSION_2018_2  # noqa
 from pytools import RecordWithoutPickling, memoize_in
 
 
diff --git a/grudge/symbolic/compiler.py b/grudge/symbolic/compiler.py
index c90f61238508af66e0abf5b028608426211fc45d..34251b833fe765dc553731912c4e54c80441d6d2 100644
--- a/grudge/symbolic/compiler.py
+++ b/grudge/symbolic/compiler.py
@@ -34,7 +34,7 @@ import grudge.symbolic.mappers as mappers
 from pymbolic.primitives import Variable, Subscript
 from six.moves import intern
 
-from loopy.version import LOOPY_USE_LANGUAGE_VERSION_2018_1  # noqa: F401
+from loopy.version import LOOPY_USE_LANGUAGE_VERSION_2018_2  # noqa: F401
 
 
 # {{{ instructions
diff --git a/requirements.txt b/requirements.txt
index deb093942eb18a06631afdde454793a5da1d2fb4..abcb4b159f0249302f9d7b652ab71acd55e0838f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,4 @@ git+https://gitlab.tiker.net/inducer/dagrt.git
 git+https://gitlab.tiker.net/inducer/leap.git
 git+https://github.com/inducer/meshpy.git
 git+https://github.com/inducer/modepy.git
-git+https://github.com/inducer/meshmode.git
+git+https://github.com/inducer/meshmode.git@pre-array-context