diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 271d466..a3ac618 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -1,4 +1,4 @@
-# Workflow derived from https://github.com/r-lib/actions/tree/master/examples
+# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
 # Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
 on:
   push:
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         config:
-          - {os: macOS-latest,   r: 'release'}
+          - {os: macos-latest,   r: 'release'}
           - {os: windows-latest, r: 'release'}
           - {os: ubuntu-latest,   r: 'devel', http-user-agent: 'release'}
           - {os: ubuntu-latest,   r: 'release'}
@@ -29,18 +29,21 @@ jobs:
       R_KEEP_PKG_SOURCE: yes
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - uses: r-lib/actions/setup-pandoc@v1
+      - uses: r-lib/actions/setup-pandoc@v2
 
-      - uses: r-lib/actions/setup-r@v1
+      - uses: r-lib/actions/setup-r@v2
         with:
           r-version: ${{ matrix.config.r }}
           http-user-agent: ${{ matrix.config.http-user-agent }}
           use-public-rspm: true
 
-      - uses: r-lib/actions/setup-r-dependencies@v1
+      - uses: r-lib/actions/setup-r-dependencies@v2
         with:
-          extra-packages: rcmdcheck
+          extra-packages: any::rcmdcheck
+          needs: check
 
-      - uses: r-lib/actions/check-r-package@v1
+      - uses: r-lib/actions/check-r-package@v2
+        with:
+          upload-snapshots: true
diff --git a/DESCRIPTION b/DESCRIPTION
index 10be66b..d3e41d9 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,9 +1,9 @@
 Package: EloOptimized
 Title: Optimized Elo Rating Method for Obtaining Dominance Ranks
 Version: 0.3.1.9000
-Date: 2021-12-18
+Date: 2023-05-08
 Authors@R: c(
-    person("Joseph", "Feldblum", email = "feldblum@umich.edu", role = c("aut", "cre")),
+    person("Joseph", "Feldblum", email = "jtf9@duke.edu", role = c("aut", "cre")),
     person("Steffen", "Foerster", email = "sf2041@gmail.com", role = c("aut")),
     person("Mathias", "Franz", email = "m.franz@izw-berlin.de", role = c("aut")))
 Description: Provides an implementation of the maximum likelihood methods for deriving
@@ -13,7 +13,7 @@ Depends:
 License: GPL-3
 Encoding: UTF-8
 LazyData: true
-RoxygenNote: 7.1.1
+RoxygenNote: 7.2.3
 Imports: dplyr,
     reshape2,
     BAMMtools,
diff --git a/NEWS.md b/NEWS.md
index d5193f9..49c27a5 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -2,7 +2,7 @@
 
 * Added a step to check that agon_data are in chronological order, and throw a warning if not.
 
-* removed ubuntu checks (tried "- {os: ubuntu-latest, r: 'release'}" and "- {os: ubuntu-18.04, r: 'release', rspm: "https://packagemanager.rstudio.com/cran/__linux__/xenial/latest"}", and various other combinations, none of them worked, I'll have to figure out how to make this work again I guess before submitting next version to CRAN)
+* Fixed checks for ubuntu and Mac
 
 * Added new and improved informative errors to eloratingopt() that tell you which individuals are filtered out for not having >= 1 win and 1 loss, and which individuals have interactions outside of their presence window.
 
diff --git a/README.Rmd b/README.Rmd
index 7260b91..8ddd443 100644
--- a/README.Rmd
+++ b/README.Rmd
@@ -20,8 +20,7 @@ library(EloOptimized)
 
   <!-- badges: start -->
   
-  [![Travis-CI Build Status](https://travis-ci.org/jtfeld/EloOptimized.svg?branch=master)](https://travis-ci.org/jtfeld/EloOptimized)
-[![R-CMD-check](https://github.com/jtfeld/EloOptimized/workflows/R-CMD-check/badge.svg)](https://github.com/jtfeld/EloOptimized/actions)
+  [![R-CMD-check](https://github.com/jtfeld/EloOptimized/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/jtfeld/EloOptimized/actions/workflows/R-CMD-check.yaml)
   [![CRAN_Status_Badge](http://www.r-pkg.org/badges/version/EloOptimized)](https://cran.r-project.org/package=EloOptimized)
   [![](https://cranlogs.r-pkg.org/badges/grand-total/EloOptimized)](https://cran.r-project.org/package=EloOptimized)
   <!-- badges: end -->
diff --git a/README.md b/README.md
index b2c4eb2..781e5e2 100644
--- a/README.md
+++ b/README.md
@@ -5,9 +5,7 @@
 
 <!-- badges: start -->
 
-[![Travis-CI Build
-Status](https://travis-ci.org/jtfeld/EloOptimized.svg?branch=master)](https://travis-ci.org/jtfeld/EloOptimized)
-[![R-CMD-check](https://github.com/jtfeld/EloOptimized/workflows/R-CMD-check/badge.svg)](https://github.com/jtfeld/EloOptimized/actions)
+[![R-CMD-check](https://github.com/jtfeld/EloOptimized/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/jtfeld/EloOptimized/actions/workflows/R-CMD-check.yaml)
 [![CRAN_Status_Badge](http://www.r-pkg.org/badges/version/EloOptimized)](https://cran.r-project.org/package=EloOptimized)
 [![](https://cranlogs.r-pkg.org/badges/grand-total/EloOptimized)](https://cran.r-project.org/package=EloOptimized)
 <!-- badges: end -->