diff --git a/.github/workflows/main-publish.yml b/.github/workflows/main-publish.yml
index 1b7a7ff3..b79d0202 100644
--- a/.github/workflows/main-publish.yml
+++ b/.github/workflows/main-publish.yml
@@ -18,7 +18,7 @@ jobs:
   # This workflow contains a single job called "build"
   build:
     # The type of runner that the job will run on
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 96a93b5e..133cb81f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,7 +18,7 @@ jobs:
   # This workflow contains a single job called "build"
   build:
     # The type of runner that the job will run on
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         python_version: [3.7, 3.8, 3.9]
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 2a1ca15a..597a8973 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -6,6 +6,11 @@ Submit4DN
 Change Log
 ----------
 
+3.1.2
+=====
+
+* update to ubuntu version 20.04 in github workflows
+
 3.1.1
 =====
 
diff --git a/pyproject.toml b/pyproject.toml
index 7fbd1e56..9c764b21 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "Submit4DN"
-version = "3.1.1"
+version = "3.1.2"
 description = "Utility package for submitting data to the 4DN Data Portal"
 authors = ["4DN-DCIC Team <support@4dnucleome.org>"]
 license = "MIT"