diff --git a/plugins/auth-backend/config.d.ts b/plugins/auth-backend/config.d.ts
index 7c105af524..c748090711 100644
--- a/plugins/auth-backend/config.d.ts
+++ b/plugins/auth-backend/config.d.ts
@@ -51,7 +51,7 @@ export interface Config {
         cert?: string;
         privateKey?: string;
         decryptionPvk?: string;
-        signatureAlgorithm?: 'sha1' | 'sha256' | 'sha512';
+        signatureAlgorithm?: 'sha256' | 'sha512';
         digestAlgorithm?: string;
       };
       okta?: {
diff --git a/plugins/auth-backend/package.json b/plugins/auth-backend/package.json
index 713ad07617..38d074f7fb 100644
--- a/plugins/auth-backend/package.json
+++ b/plugins/auth-backend/package.json
@@ -58,7 +58,7 @@
     "passport-oauth2": "^1.5.0",
     "passport-okta-oauth": "^0.0.1",
     "passport-onelogin-oauth": "^0.0.1",
-    "passport-saml": "^1.3.5, <1.4.0",
+    "passport-saml": "^2.0.0",
     "uuid": "^8.0.0",
     "winston": "^3.2.1",
     "yn": "^4.0.0"
@@ -74,6 +74,8 @@
     "@types/passport-google-oauth20": "^2.0.3",
     "@types/passport-microsoft": "^0.0.0",
     "@types/passport-saml": "^1.1.2",
+    "@types/passport-strategy": "^0.2.35",
+    "@types/xml2js": "^0.4.7",
     "msw": "^0.21.2",
     "nock": "^13.0.5"
   },
diff --git a/plugins/auth-backend/src/providers/saml/provider.ts b/plugins/auth-backend/src/providers/saml/provider.ts
index 45676ac43e..74541d8294 100644
--- a/plugins/auth-backend/src/providers/saml/provider.ts
+++ b/plugins/auth-backend/src/providers/saml/provider.ts
@@ -15,8 +15,8 @@
  */
 
 import express from 'express';
+import { SamlConfig } from 'passport-saml/lib/passport-saml/types';
 import {
-  SamlConfig,
   Strategy as SamlStrategy,
   Profile as SamlProfile,
   VerifyWithoutRequest,
diff --git a/yarn.lock b/yarn.lock
index a0004872ad..1c14ea766e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6821,6 +6821,14 @@
     "@types/express" "*"
     "@types/passport" "*"
 
+"@types/passport-strategy@^0.2.35":
+  version "0.2.35"
+  resolved "https://registry.npmjs.org/@types/passport-strategy/-/passport-strategy-0.2.35.tgz#e52f5212279ea73f02d9b06af67efe9cefce2d0c"
+  integrity sha512-o5D19Jy2XPFoX2rKApykY15et3Apgax00RRLf0RUotPDUsYrQa7x4howLYr9El2mlUApHmCMv5CZ1IXqKFQ2+g==
+  dependencies:
+    "@types/express" "*"
+    "@types/passport" "*"
+
 "@types/passport@*", "@types/passport@^1.0.3":
   version "1.0.4"
   resolved "https://registry.npmjs.org/@types/passport/-/passport-1.0.4.tgz#1b35c4e197560d3974fa5f71711b6e9cce0711f0"
@@ -7275,6 +7283,13 @@
   dependencies:
     "@types/node" "*"
 
+"@types/xml2js@^0.4.7":
+  version "0.4.7"
+  resolved "https://registry.npmjs.org/@types/xml2js/-/xml2js-0.4.7.tgz#cd5b6c67bbec741ac625718a76e6cb99bc34365e"
+  integrity sha512-f5VOKSMEE0O+/L54FHwA/a7vcx9mHeSDM71844yHCOhh8Cin2xQa0UFw0b7Vc5hoZ3Ih6ZHaDobjfLih4tWPNw==
+  dependencies:
+    "@types/node" "*"
+
 "@types/yargs-parser@*":
   version "15.0.0"
   resolved "https://registry.npmjs.org/@types/yargs-parser/-/yargs-parser-15.0.0.tgz#cb3f9f741869e20cce330ffbeb9271590483882d"
@@ -19879,17 +19894,16 @@ passport-onelogin-oauth@^0.0.1:
     pkginfo "0.2.x"
     uid2 "0.0.3"
 
-"passport-saml@^1.3.5, <1.4.0":
-  version "1.3.5"
-  resolved "https://registry.npmjs.org/passport-saml/-/passport-saml-1.3.5.tgz#747f2c8bb8b9fed41e8cd14586df5aa83e8a8996"
-  integrity sha512-HFamiqgGiMRCbUBm3wx02WYWKb6ojke0WJHrg4QXI8tx35HrTmDiY8MksUXhouJtEkfcRwXjBL2cSEpRQ6+PgQ==
+passport-saml@^2.0.0:
+  version "2.0.2"
+  resolved "https://registry.npmjs.org/passport-saml/-/passport-saml-2.0.2.tgz#41c459f0f4c4cf0374b161bf3f9ab008fcacb8fe"
+  integrity sha512-e8rT/nWEY3YalktzZlGXvnj6mLDQD4R+atfStCF4nHCbqK5IUpip+Bj2Wzbm9v5F/KI497k57kNXkHCLfDSVjA==
   dependencies:
     debug "^3.1.0"
     passport-strategy "*"
-    q "^1.5.0"
-    xml-crypto "^1.4.0"
+    xml-crypto "^2.0.0"
     xml-encryption "1.2.1"
-    xml2js "0.4.x"
+    xml2js "^0.4.23"
     xmlbuilder "^11.0.0"
     xmldom "0.1.x"
 
@@ -21043,7 +21057,7 @@ pupa@^2.0.1:
   dependencies:
     escape-goat "^2.0.0"
 
-q@^1.1.2, q@^1.5.0, q@^1.5.1:
+q@^1.1.2, q@^1.5.1:
   version "1.5.1"
   resolved "https://registry.npmjs.org/q/-/q-1.5.1.tgz#7e32f75b41381291d04611f1bf14109ac00651d7"
   integrity sha1-fjL3W0E4EpHQRhHxvxQQmsAGUdc=
@@ -26074,10 +26088,10 @@ xml-but-prettier@^1.0.1:
   dependencies:
     repeat-string "^1.5.2"
 
-xml-crypto@^1.4.0:
-  version "1.5.3"
-  resolved "https://registry.npmjs.org/xml-crypto/-/xml-crypto-1.5.3.tgz#a8f500b90f0dfaf0efa3331c345ecb0fff993c34"
-  integrity sha512-uHkmpUtX15xExe5iimPmakAZN+6CqIvjmaJTy4FwqGzaTjrKRBNeqMh8zGEzVNgW0dk6beFYpyQSgqV/J6C5xA==
+xml-crypto@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.npmjs.org/xml-crypto/-/xml-crypto-2.0.0.tgz#54cd268ad9d31930afcf7092cbb664258ca9e826"
+  integrity sha512-/a04qr7RpONRZHOxROZ6iIHItdsQQjN3sj8lJkYDDss8tAkEaAs0VrFjb3tlhmS5snQru5lTs9/5ISSMdPDHlg==
   dependencies:
     xmldom "0.1.27"
     xpath "0.0.27"
@@ -26097,7 +26111,7 @@ xml-name-validator@^3.0.0:
   resolved "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-3.0.0.tgz#6ae73e06de4d8c6e47f9fb181f78d648ad457c6a"
   integrity sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==
 
-xml2js@0.4.x:
+xml2js@^0.4.23:
   version "0.4.23"
   resolved "https://registry.npmjs.org/xml2js/-/xml2js-0.4.23.tgz#a0c69516752421eb2ac758ee4d4ccf58843eac66"
   integrity sha512-ySPiMjM0+pLDftHgXY4By0uswI3SPKLDw/i3UXbnO8M/p28zqexCUoPmQFrYD+/1BzhGJSs2i1ERWKJAtiLrug==