diff --git a/plugins/auth-backend/src/providers/github/provider.ts b/plugins/auth-backend/src/providers/github/provider.ts
index a67e78febd..37d661f9ab 100644
--- a/plugins/auth-backend/src/providers/github/provider.ts
+++ b/plugins/auth-backend/src/providers/github/provider.ts
@@ -134,8 +134,8 @@ export function createGithubProvider(
   const providerId = 'github';
   const secure = envConfig.getBoolean('secure');
   const appOrigin = envConfig.getString('appOrigin');
-  const clientID = envConfig.getOptionalString('clientId');
-  const clientSecret = envConfig.getOptionalString('clientSecret');
+  const clientID = envConfig.getString('clientId');
+  const clientSecret = envConfig.getString('clientSecret');
   const callbackURL = `${baseUrl}/${providerId}/handler/frame?env=${env}`;
 
   const opts = {
diff --git a/plugins/auth-backend/src/providers/gitlab/provider.ts b/plugins/auth-backend/src/providers/gitlab/provider.ts
index 78b1a55211..c5c546c6f3 100644
--- a/plugins/auth-backend/src/providers/gitlab/provider.ts
+++ b/plugins/auth-backend/src/providers/gitlab/provider.ts
@@ -141,9 +141,9 @@ export function createGitlabProvider(
   const providerId = 'gitlab';
   const secure = envConfig.getBoolean('secure');
   const appOrigin = envConfig.getString('appOrigin');
-  const clientID = envConfig.getOptionalString('clientId');
-  const clientSecret = envConfig.getOptionalString('clientSecret');
-  const audience = envConfig.getOptionalString('audience');
+  const clientID = envConfig.getString('clientId');
+  const clientSecret = envConfig.getString('clientSecret');
+  const audience = envConfig.getString('audience');
   const baseURL = audience || 'https://gitlab.com';
   const callbackURL = `${baseUrl}/${providerId}/handler/frame?env=${env}`;
 
diff --git a/plugins/auth-backend/src/providers/oauth2/provider.ts b/plugins/auth-backend/src/providers/oauth2/provider.ts
index e4258605ac..967fd011f0 100644
--- a/plugins/auth-backend/src/providers/oauth2/provider.ts
+++ b/plugins/auth-backend/src/providers/oauth2/provider.ts
@@ -151,11 +151,11 @@ export function createOAuth2Provider(
   const providerId = 'oauth2';
   const secure = envConfig.getBoolean('secure');
   const appOrigin = envConfig.getString('appOrigin');
-  const clientID = envConfig.getOptionalString('clientId');
-  const clientSecret = envConfig.getOptionalString('clientSecret');
+  const clientID = envConfig.getString('clientId');
+  const clientSecret = envConfig.getString('clientSecret');
   const callbackURL = `${baseUrl}/${providerId}/handler/frame?env=${env}`;
-  const authorizationURL = envConfig.getOptionalString('authorizationURL');
-  const tokenURL = envConfig.getOptionalString('tokenURL');
+  const authorizationURL = envConfig.getString('authorizationURL');
+  const tokenURL = envConfig.getString('tokenURL');
 
   const opts = {
     clientID,
diff --git a/plugins/auth-backend/src/providers/okta/provider.ts b/plugins/auth-backend/src/providers/okta/provider.ts
index 5fcc7cb778..56e8b1220d 100644
--- a/plugins/auth-backend/src/providers/okta/provider.ts
+++ b/plugins/auth-backend/src/providers/okta/provider.ts
@@ -173,9 +173,9 @@ export function createOktaProvider(
   const providerId = 'okta';
   const secure = envConfig.getBoolean('secure');
   const appOrigin = envConfig.getString('appOrigin');
-  const clientID = envConfig.getOptionalString('clientId');
-  const clientSecret = envConfig.getOptionalString('clientSecret');
-  const audience = envConfig.getOptionalString('audience');
+  const clientID = envConfig.getString('clientId');
+  const clientSecret = envConfig.getString('clientSecret');
+  const audience = envConfig.getString('audience');
   const callbackURL = `${baseUrl}/${providerId}/handler/frame?env=${env}`;
 
   const opts = {