diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index e7e3bc86..3aa08d35 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -1,4 +1,10 @@
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+  schedule:
+    - cron: '0 1 * * *'
 
 name: R-CMD-check
 
diff --git a/DESCRIPTION b/DESCRIPTION
index fbbc137a..ad437f0c 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -51,7 +51,7 @@ Suggests:
     keras,
     tfestimators,
     callr
-RoxygenNote: 7.0.2
+RoxygenNote: 7.1.1
 Config/reticulate:
   list(
     packages = list(
diff --git a/R/install.R b/R/install.R
index 50a2ff57..366f811c 100644
--- a/R/install.R
+++ b/R/install.R
@@ -44,7 +44,7 @@ install_tensorflow <- function(method = c("auto", "virtualenv", "conda"),
                                envname = NULL,
                                extra_packages = NULL,
                                restart_session = TRUE,
-                               conda_python_version = "3.6",
+                               conda_python_version = "3.7",
                                ...) {
 
   # verify 64-bit
@@ -84,7 +84,7 @@ install_tensorflow <- function(method = c("auto", "virtualenv", "conda"),
 
 parse_tensorflow_version <- function(version) {
 
-  default_version <- "2.2.0"
+  default_version <- "2.4"
 
   ver <- list(
     version = default_version,
diff --git a/man/install_tensorflow.Rd b/man/install_tensorflow.Rd
index 832fe2d8..a8606c55 100644
--- a/man/install_tensorflow.Rd
+++ b/man/install_tensorflow.Rd
@@ -11,7 +11,7 @@ install_tensorflow(
   envname = NULL,
   extra_packages = NULL,
   restart_session = TRUE,
-  conda_python_version = "3.6",
+  conda_python_version = "3.7",
   ...
 )
 }
@@ -49,8 +49,8 @@ only occur within RStudio).}
 \item{conda_python_version}{the python version installed in the created conda
 environment. Python 3.6 is installed by default.}
 
-\item{...}{other arguments passed to \code{\link[reticulate:conda_install]{reticulate::conda_install()}} or
-\code{\link[reticulate:virtualenv_install]{reticulate::virtualenv_install()}}.}
+\item{...}{other arguments passed to \code{\link[reticulate:conda-tools]{reticulate::conda_install()}} or
+\code{\link[reticulate:virtualenv-tools]{reticulate::virtualenv_install()}}.}
 }
 \description{
 Install TensorFlow and its dependencies
diff --git a/man/reexports.Rd b/man/reexports.Rd
index ef58fc30..83fc2ec3 100644
--- a/man/reexports.Rd
+++ b/man/reexports.Rd
@@ -26,8 +26,8 @@ These objects are imported from other packages. Follow the links
 below to see their documentation.
 
 \describe{
-  \item{reticulate}{\code{\link[reticulate]{\%as\%}}, \code{\link[reticulate]{array_reshape}}, \code{\link[reticulate]{dict}}, \code{\link[reticulate]{import}}, \code{\link[reticulate]{iterate}}, \code{\link[reticulate]{np_array}}, \code{\link[reticulate]{tuple}}, \code{\link[reticulate]{use_condaenv}}, \code{\link[reticulate]{use_python}}, \code{\link[reticulate]{use_virtualenv}}}
+  \item{reticulate}{\code{\link[reticulate:with-as-operator]{\%as\%}}, \code{\link[reticulate]{array_reshape}}, \code{\link[reticulate]{dict}}, \code{\link[reticulate]{import}}, \code{\link[reticulate]{iterate}}, \code{\link[reticulate]{np_array}}, \code{\link[reticulate]{tuple}}, \code{\link[reticulate:use_python]{use_condaenv}}, \code{\link[reticulate]{use_python}}, \code{\link[reticulate:use_python]{use_virtualenv}}}
 
-  \item{tfruns}{\code{\link[tfruns]{flag_boolean}}, \code{\link[tfruns]{flag_integer}}, \code{\link[tfruns]{flag_numeric}}, \code{\link[tfruns]{flag_string}}, \code{\link[tfruns]{flags}}, \code{\link[tfruns]{run_dir}}}
+  \item{tfruns}{\code{\link[tfruns:flags]{flag_boolean}}, \code{\link[tfruns:flags]{flag_integer}}, \code{\link[tfruns:flags]{flag_numeric}}, \code{\link[tfruns:flags]{flag_string}}, \code{\link[tfruns]{flags}}, \code{\link[tfruns]{run_dir}}}
 }}
 
diff --git a/man/tf.Rd b/man/tf.Rd
index f11eadef..9427e7de 100644
--- a/man/tf.Rd
+++ b/man/tf.Rd
@@ -4,7 +4,9 @@
 \name{tf}
 \alias{tf}
 \title{Main TensorFlow module}
-\format{TensorFlow module}
+\format{
+TensorFlow module
+}
 \usage{
 tf
 }
diff --git a/man/tf_extract_opts.Rd b/man/tf_extract_opts.Rd
index 35ef365e..2da5b7d7 100644
--- a/man/tf_extract_opts.Rd
+++ b/man/tf_extract_opts.Rd
@@ -9,7 +9,8 @@ tf_extract_opts(
   ...,
   one_based = getOption("tensorflow.extract.one_based", TRUE),
   inclusive_stop = getOption("tensorflow.extract.inclusive_stop", TRUE),
-  disallow_out_of_bounds = getOption("tensorflow.extract.dissallow_out_of_bounds", TRUE),
+  disallow_out_of_bounds = getOption("tensorflow.extract.dissallow_out_of_bounds",
+    TRUE),
   warn_tensors_passed_asis = getOption("tensorflow.extract.warn_tensors_passed_asis",
     TRUE),
   warn_negatives_pythonic = getOption("tensorflow.extract.warn_negatives_pythonic",