diff --git a/docker-compose.fd.ci.yml b/docker-compose.fd.ci.yml
index 712410c2b..0fb548101 100644
--- a/docker-compose.fd.ci.yml
+++ b/docker-compose.fd.ci.yml
@@ -21,6 +21,7 @@ services:
         SENTRY_DSN: ''
         SERVICE_PROVIDER: fd
         LANGUAGE_CENTER_VIEW_ENABLED: 'false' # currently no intention to be enabled
+        SIS_URL: 'https://sis-qa.funidata.fi'
         NODE_ENV: production
     image: ${DOCKER_OODIKONE_NAMESPACE:-637423527834.dkr.ecr.eu-north-1.amazonaws.com/oodikone}/oodikone-frontend:${DOCKER_IMAGE_TAG:-dev}
 
diff --git a/docker-compose.fd.yml b/docker-compose.fd.yml
index b97cbb212..01572346a 100644
--- a/docker-compose.fd.yml
+++ b/docker-compose.fd.yml
@@ -64,6 +64,7 @@ services:
     environment:
       REACT_APP_SERVICE_PROVIDER: fd
       REACT_APP_LANGUAGE_CENTER_VIEW_ENABLED: 'false'
+      REACT_APP_SIS_URL: 'https://sis-qa.funidata.fi'
     volumes:
       - ./services/frontend/src/:/opt/app-root/src/src
       - ./services/shared/:/opt/app-root/src/src/shared
diff --git a/services/frontend/Dockerfile b/services/frontend/Dockerfile
index 717037139..38c2d0966 100644
--- a/services/frontend/Dockerfile
+++ b/services/frontend/Dockerfile
@@ -32,6 +32,9 @@ ENV REACT_APP_SERVICE_PROVIDER=$SERVICE_PROVIDER
 ARG LANGUAGE_CENTER_VIEW_ENABLED
 ENV REACT_APP_LANGUAGE_CENTER_VIEW_ENABLED=$LANGUAGE_CENTER_VIEW_ENABLED
 
+ARG SIS_URL
+ENV REACT_APP_SIS_URL=$SIS_URL
+
 COPY ./frontend/package* ./
 RUN npm ci --include=dev
 COPY ./frontend .
diff --git a/services/frontend/src/components/common/SisuLinkItem.tsx b/services/frontend/src/components/common/SisuLinkItem.tsx
index 3502111eb..7b42dd23d 100644
--- a/services/frontend/src/components/common/SisuLinkItem.tsx
+++ b/services/frontend/src/components/common/SisuLinkItem.tsx
@@ -1,4 +1,5 @@
 import { Icon, Item } from 'semantic-ui-react'
+import { sisUrl } from '@/conf'
 
 interface SisuLinkItemProps {
   id: string
@@ -6,7 +7,7 @@ interface SisuLinkItemProps {
 
 export const SisuLinkItem = ({ id }: SisuLinkItemProps) => (
   <div data-cy="sisulink">
-    <Item as="a" href={`https://sisu.helsinki.fi/tutor/role/staff/student/${id}/basic/basic-info`} target="_blank">
+    <Item as="a" href={`${sisUrl}/tutor/role/staff/student/${id}/basic/basic-info`} target="_blank">
       <Icon name="external alternate" />
       Sisu
     </Item>
diff --git a/services/frontend/src/components/material/StudentInfoItem.tsx b/services/frontend/src/components/material/StudentInfoItem.tsx
index 169af5c2e..09a82f5e2 100644
--- a/services/frontend/src/components/material/StudentInfoItem.tsx
+++ b/services/frontend/src/components/material/StudentInfoItem.tsx
@@ -1,7 +1,7 @@
 import { Person as PersonIcon } from '@mui/icons-material'
 import { IconButton, Stack } from '@mui/material'
 import { Link } from 'react-router'
-
+import { sisUrl } from '@/conf'
 import { ExternalLink } from './Footer/ExternalLink'
 
 export const StudentInfoItem = ({ sisPersonId, studentNumber }: { sisPersonId: string; studentNumber: string }) => (
@@ -11,10 +11,7 @@ export const StudentInfoItem = ({ sisPersonId, studentNumber }: { sisPersonId: s
       <IconButton component={Link} sx={{ padding: 0 }} target="_blank" to={`/students/${studentNumber}`}>
         <PersonIcon color="primary" fontSize="small" />
       </IconButton>
-      <ExternalLink
-        href={`https://sisu.helsinki.fi/tutor/role/staff/student/${sisPersonId}/basic/basic-info`}
-        text="Sisu"
-      />
+      <ExternalLink href={`${sisUrl}/tutor/role/staff/student/${sisPersonId}/basic/basic-info`} text="Sisu" />
     </Stack>
   </Stack>
 )
diff --git a/services/frontend/src/conf.js b/services/frontend/src/conf.js
index bcbe6eb55..aace378c0 100644
--- a/services/frontend/src/conf.js
+++ b/services/frontend/src/conf.js
@@ -28,3 +28,6 @@ export const serviceProvider = process.env.REACT_APP_SERVICE_PROVIDER
 export const languageCenterViewEnabled = !process.env.REACT_APP_LANGUAGE_CENTER_VIEW_ENABLED
   ? true
   : process.env.REACT_APP_LANGUAGE_CENTER_VIEW_ENABLED === 'true'
+
+// SISU url
+export const sisUrl = process.env.REACT_APP_SIS_URL ? process.env.REACT_APP_SIS_URL : 'https://sisu.helsinki.fi'
diff --git a/services/frontend/src/pages/Students/StudentDetails/StudentInfoCard.tsx b/services/frontend/src/pages/Students/StudentDetails/StudentInfoCard.tsx
index c98a61a61..f0fbf90e4 100644
--- a/services/frontend/src/pages/Students/StudentDetails/StudentInfoCard.tsx
+++ b/services/frontend/src/pages/Students/StudentDetails/StudentInfoCard.tsx
@@ -4,6 +4,7 @@ import { Card, CardContent, Typography, Button, Stack } from '@mui/material'
 import { callApi } from '@/apiConnection'
 import { ExternalLink } from '@/components/material/Footer/ExternalLink'
 import { useStudentNameVisibility } from '@/components/StudentNameVisibilityToggle'
+import { sisUrl } from '@/conf'
 import { DISPLAY_DATE_FORMAT, DISPLAY_DATE_FORMAT_DEV } from '@/constants/date'
 import { useGetAuthorizedUserQuery } from '@/redux/auth'
 import { reformatDate } from '@/util/timeAndDate'
@@ -31,7 +32,7 @@ export const StudentInfoCard = ({ student }) => {
             </Typography>
             <ExternalLink
               cypress="sisu-link"
-              href={`https://sisu.helsinki.fi/tutor/role/staff/student/${student.sis_person_id}/basic/basic-info`}
+              href={`${sisUrl}/tutor/role/staff/student/${student.sis_person_id}/basic/basic-info`}
               text="Sisu"
               variant="h6"
             />