diff --git a/.github/workflows/server-ci.yml b/.github/workflows/server-ci.yml
index 5be13f02388..0b1ca9b112d 100644
--- a/.github/workflows/server-ci.yml
+++ b/.github/workflows/server-ci.yml
@@ -82,7 +82,7 @@ jobs:
     services:
       # make default-roles-permissions snapshots a live database.
       postgres:
-        image: postgres:14
+        image: postgres:15
         env:
           POSTGRES_USER: mmuser
           POSTGRES_PASSWORD: mostest
diff --git a/e2e-tests/.ci/server.generate.sh b/e2e-tests/.ci/server.generate.sh
index 6dc5624e64c..a3ccd9bc92a 100755
--- a/e2e-tests/.ci/server.generate.sh
+++ b/e2e-tests/.ci/server.generate.sh
@@ -93,7 +93,7 @@ $(for service in $ENABLED_DOCKER_SERVICES; do
 $(if mme2e_is_token_in_list "postgres" "$ENABLED_DOCKER_SERVICES"; then
     echo '
   postgres:
-    image: mattermostdevelopment/mirrored-postgres:14
+    image: mattermostdevelopment/mirrored-postgres:15
     restart: "no"
     network_mode: host
     networks: !reset []
diff --git a/server/build/docker-compose.common.yml b/server/build/docker-compose.common.yml
index b92631bf534..475464c30e0 100644
--- a/server/build/docker-compose.common.yml
+++ b/server/build/docker-compose.common.yml
@@ -5,7 +5,7 @@ x-logging: &default-logging
 
 services:
   postgres:
-    image: "postgres:14"
+    image: "postgres:15"
     logging: *default-logging
     restart: always
     networks:
diff --git a/server/channels/store/sqlstore/store.go b/server/channels/store/sqlstore/store.go
index bedd4b1efd3..49e2e722137 100644
--- a/server/channels/store/sqlstore/store.go
+++ b/server/channels/store/sqlstore/store.go
@@ -49,7 +49,7 @@ const (
 	// After 10, it's major and minor only.
 	// 10.1 would be 100001.
 	// 9.6.3 would be 90603.
-	minimumRequiredPostgresVersion = 140000
+	minimumRequiredPostgresVersion = 150000
 
 	migrationsDirectionUp   migrationDirection = "up"
 	migrationsDirectionDown migrationDirection = "down"
diff --git a/server/channels/store/sqlstore/store_test.go b/server/channels/store/sqlstore/store_test.go
index d5a636a3dff..5ba889a4691 100644
--- a/server/channels/store/sqlstore/store_test.go
+++ b/server/channels/store/sqlstore/store_test.go
@@ -541,28 +541,37 @@ func TestCheckVersion(t *testing.T) {
 			ver:            "110001",
 			wantLog:        "Unsupported Postgres version",
 			wantVersion:    "11.1",
-			wantMinVersion: "14.0",
+			wantMinVersion: "15.0",
 		},
 		{
 			ver:            "130001",
 			wantLog:        "Unsupported Postgres version",
 			wantVersion:    "13.1",
-			wantMinVersion: "14.0",
+			wantMinVersion: "15.0",
 		},
 		{
-			ver: "140000",
+			ver:            "140000",
+			wantLog:        "Unsupported Postgres version",
+			wantVersion:    "14.0",
+			wantMinVersion: "15.0",
 		},
 		{
-			ver: "140019",
+			ver:            "140019",
+			wantLog:        "Unsupported Postgres version",
+			wantVersion:    "14.19",
+			wantMinVersion: "15.0",
 		},
 		{
 			ver: "150000",
 		},
+		{
+			ver: "150019",
+		},
 		{
 			ver:            "90603",
 			wantLog:        "Unsupported Postgres version",
 			wantVersion:    "9.6.3",
-			wantMinVersion: "14.0",
+			wantMinVersion: "15.0",
 		},
 		{
 			ver:     "12.34.1",
diff --git a/server/docker-compose.makefile.yml b/server/docker-compose.makefile.yml
index b8cd037d5cd..5c8d726954f 100644
--- a/server/docker-compose.makefile.yml
+++ b/server/docker-compose.makefile.yml
@@ -5,7 +5,7 @@ services:
     ports:
       - "5432:5432"
     volumes:
-     - "postgres-14-data:/var/lib/postgresql/data"
+     - "postgres-15-data:/var/lib/postgresql/data"
     extends:
         file: build/docker-compose.common.yml
         service: postgres
@@ -125,4 +125,4 @@ networks:
           ip_range: 192.168.254.0/24
 
 volumes:
-  postgres-14-data:
+  postgres-15-data:
diff --git a/server/docker-compose.pgvector.yml b/server/docker-compose.pgvector.yml
index 785cddc22f4..7b99998d046 100644
--- a/server/docker-compose.pgvector.yml
+++ b/server/docker-compose.pgvector.yml
@@ -3,6 +3,6 @@
 services:
   postgres:
     # Override the postgres image to use pgvector
-    image: "pgvector/pgvector:pg14"
+    image: "pgvector/pgvector:pg15"
     # All other settings are inherited from the base service