diff --git a/.semaphore/semaphore.yml b/.semaphore/semaphore.yml
index 8143387a..f8b82582 100644
--- a/.semaphore/semaphore.yml
+++ b/.semaphore/semaphore.yml
@@ -122,7 +122,7 @@ blocks:
     task:
       agent:
         machine:
-          type: e1-standard-2
+          type: e2-standard-2
           os_image: ubuntu2004
       prologue:
         commands:
@@ -146,6 +146,7 @@ blocks:
             - env_var: TEST
               values:
                 - php
+                - elixir
           commands:
             - bats tests/sem_version_focal/${TEST}.bats
 
diff --git a/sem-install b/sem-install
index 97712a78..6d4ebd7d 100644
--- a/sem-install
+++ b/sem-install
@@ -74,6 +74,9 @@ install::install_elixir() {
   response1=$(curl --write-out %{http_code} --head --silent --output /dev/null $(install::package_url)/${language}/elixirs_${language_version}.tar.gz)
   response2=$(curl --write-out %{http_code} --head --silent --output /dev/null $(install::package_url)/${language}/archives_${language_version}.tar.gz)
   case ${language_version} in
+      "1.6"*)
+        local erlang_version="20.3"
+        ;;
       "1.7"* | "1.8"* | "1.9"* | "1.10"*)
         local erlang_version="22.3"
         ;;
diff --git a/sem-version b/sem-version
index 015e0863..e853d1ca 100755
--- a/sem-version
+++ b/sem-version
@@ -59,6 +59,7 @@ version::change_node() {
   return $?
 }
 version::change_elixir() {
+  [[ "$software_version" == "1.6" ]] && software_version="1.6.6"
   [[ "$software_version" == "1.7" ]] && software_version="1.7.4"
   [[ "$software_version" == "1.8" ]] && software_version="1.8.2"
   [[ "$software_version" == "1.9" ]] && software_version="1.9.4"
diff --git a/tests/sem_version_focal/elixir.bats b/tests/sem_version_focal/elixir.bats
new file mode 100644
index 00000000..522dc9e7
--- /dev/null
+++ b/tests/sem_version_focal/elixir.bats
@@ -0,0 +1,68 @@
+#!/usr/bin/env bats
+
+load "../support/bats-support/load"
+load "../support/bats-assert/load"
+
+setup() {
+  source /tmp/.env-*
+  source /opt/change-erlang-version.sh
+  source /opt/change-python-version.sh
+  source /opt/change-go-version.sh
+  source /opt/change-java-version.sh
+  source /opt/change-scala-version.sh
+  source /opt/change-firefox-version.sh
+  source ~/.phpbrew/bashrc
+  . /home/semaphore/.nvm/nvm.sh
+  export PATH="$PATH:/home/semaphore/.yarn/bin"
+  source "/home/semaphore/.kiex/scripts/kiex"
+  export PATH="/home/semaphore/.rbenv/bin:$PATH"
+  export NVM_DIR=/home/semaphore/.nvm
+  export PHPBREW_HOME=/home/semaphore/.phpbrew
+  eval "$(rbenv init -)"
+
+  source ~/.toolbox/toolbox
+}
+
+#  Elixir
+@test "change elixir to 1.6" {
+  sem-version elixir 1.6
+  run elixir --version
+  assert_line --partial "Elixir 1.6"
+}
+
+#  Elixir
+@test "change elixir to 1.7.4" {
+  sem-version elixir 1.7.4
+  run elixir --version
+  assert_line --partial "Elixir 1.7.4"
+}
+
+@test "change elixir to 1.11.4" {
+  sem-version elixir 1.11.4
+  run elixir --version
+  assert_line --partial "Elixir 1.11.4"
+}
+
+@test "change elixir to 1.12.3" {
+  sem-version elixir 1.12.3
+  run elixir --version
+  assert_line --partial "Elixir 1.12.3"
+}
+
+@test "change elixir to 1.13.4" {
+  sem-version elixir 1.13.4
+  run elixir --version
+  assert_line --partial "Elixir 1.13.4"
+}
+
+@test "change elixir to 1.14.5" {
+  sem-version elixir 1.14.5
+  run elixir --version
+  assert_line --partial "Elixir 1.14.5"
+}
+
+@test "change elixir to 1.15.2" {
+  sem-version elixir 1.15.2
+  run elixir --version
+  assert_line --partial "Elixir 1.15.2"
+}