diff --git a/debian/gitlab.postinst b/debian/gitlab.postinst
index 9dedd7c273..d336971f2c 100755
--- a/debian/gitlab.postinst
+++ b/debian/gitlab.postinst
@@ -85,6 +85,7 @@ runuser -u ${gitlab_user} -- sh -c "if ! gem list -i -v '~> 0.16' "^prometheus-c
 runuser -u ${gitlab_user} -- sh -c "if ! gem list -i -v '~> 1.3' "^warning$" >/dev/null; then gem install -v '~> 1.3' warning; fi"
 runuser -u ${gitlab_user} -- sh -c "if ! gem list -i -v '~> 2.0' "^oauth2$" >/dev/null; then gem install -v '~> 2.0' oauth2; fi"
 runuser -u ${gitlab_user} -- sh -c "if ! gem list -i -v '~> 3.13, 3.13.19' "^oj$" >/dev/null; then gem install -v '~> 3.13' oj; fi"
+runuser -u ${gitlab_user} -- sh -c "if ! gem list -i -v '~> 1.0, >= 1.7.3' "^omniauth-oauth2$" >/dev/null; then gem install -v '~> 1.7.3' omniauth-oauth2; fi"
 
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 # update Gemfile.lock and yarn.lock, always