diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index da877203..97b56a57 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,6 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         otp:
+          - "27.0"
           - "26.2"
           - "26.1"
           - "26.0"
@@ -29,10 +30,6 @@ jobs:
           - "23.2"
           - "23.1"
           - "23.0"
-          - "22.3"
-          - "22.2"
-          - "22.1"
-          - "22.0"
     runs-on: ubuntu-20.04
     steps:
       - name: Checkout Repo
diff --git a/README.md b/README.md
index 200fe228..2900fb6e 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Prepare build
 
 Get and install an Erlang system (http://www.erlang.org).
 
-**To compile Yaws, Erlang/OTP 22.0 or higher is required.**
+**To compile Yaws, Erlang/OTP 23.0 or higher is required.**
 
 If you've cloned the source from github and you want to build using autotools,
 note there is no ./configure script in the source, so create one:
diff --git a/README.osx b/README.osx
index eee5f652..1c9371fb 100644
--- a/README.osx
+++ b/README.osx
@@ -1,7 +1,7 @@
 # Homebrew on OSX
 
 If you develop on OS X, the Yaws formula works correctly for users of
-Erlang/OTP 22.0 and above. To install please run:
+Erlang/OTP 23.0 and above. To install please run:
 
     brew install yaws
 
diff --git a/configure.ac b/configure.ac
index f682e6ee..ec663550 100644
--- a/configure.ac
+++ b/configure.ac
@@ -235,10 +235,10 @@ dnl Get ERTS version.
 ERLANG_CHECK_ERTS
 ERLANG_CHECK_RELEASE
 
-dnl Require Erlang >=22.0 (ERTS 10.4) is required.
-AX_COMPARE_VERSION([${ERLANG_ERTS_VER}], [ge], [10.4],
+dnl Require Erlang >=23.0 (ERTS 11.0) is required.
+AX_COMPARE_VERSION([${ERLANG_ERTS_VER}], [ge], [11.0],
     [],
-    [AC_MSG_ERROR([Erlang 22.0 or higher is required but only Erlang $ERLANG_RELEASE was found!])])
+    [AC_MSG_ERROR([Erlang 23.0 or higher is required but only Erlang $ERLANG_RELEASE was found!])])
 
 dnl Determine directories for installation.
 if test "x${prefix}" != "xNONE" -a "x${ERLANG_INSTALL_LIB_DIR}" = "x"; then
diff --git a/doc/yaws.tex b/doc/yaws.tex
index b15e127f..286cea3d 100644
--- a/doc/yaws.tex
+++ b/doc/yaws.tex
@@ -193,7 +193,7 @@ \subsection{Compile and Install}
 
 To compile and install a \Yaws\  release
 one of the prerequisites is a properly installed \Erlang\  system. \Yaws\
-runs on \Erlang\/OTP releases 22.0 and newer. Get \Erlang\  from
+runs on \Erlang\/OTP releases 23.0 and newer. Get \Erlang\  from
 \url{http://www.erlang.org/}
 
 Compile and install is straight forward:
diff --git a/rebar.config b/rebar.config
index e76e9641..a4a213a2 100644
--- a/rebar.config
+++ b/rebar.config
@@ -1,6 +1,6 @@
 %% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
 %% ex: ft=erlang ts=4 sw=4 et
-{require_min_otp_vsn, "22.0"}.
+{require_min_otp_vsn, "23.0"}.
 
 {sub_dirs, ["rel"]}.