diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7142c61b92..c90d1d5569 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 - [#5786](https://github.com/blockscout/blockscout/pull/5786) - Replace `current_path` with `Controller.current_full_path` in two controllers
 
 ### Chore
+- [#5806](https://github.com/blockscout/blockscout/pull/5806) - Update target Postgres version in Docker: 13 -> 14
 
 ## 4.1.7-beta
 
diff --git a/docker-compose/docker-compose-no-build-ganache.yml b/docker-compose/docker-compose-no-build-ganache.yml
index 7a5b48527c..eadaa75d84 100644
--- a/docker-compose/docker-compose-no-build-ganache.yml
+++ b/docker-compose/docker-compose-no-build-ganache.yml
@@ -2,7 +2,7 @@ version: '3.8'
 
 services:
   db:
-    image: postgres:13.6
+    image: postgres:14
     restart: always
     container_name: 'postgres'
     environment:
@@ -32,6 +32,7 @@ services:
         INDEXER_DISABLE_PENDING_TRANSACTIONS_FETCHER: 'true'
         DATABASE_URL: postgresql://postgres:@host.docker.internal:7432/blockscout?ssl=false
         ECTO_USE_SSL: 'false'
+        SECRET_KEY_BASE: '56NtB48ear7+wMSf0IQuWDAAazhpb31qyc7GiyspBP2vh7t5zlCsF5QDv76chXeN'
     ports:
       - 4000:4000
 
diff --git a/docker-compose/docker-compose-no-build-geth.yml b/docker-compose/docker-compose-no-build-geth.yml
index c2177b24e9..1a78efc856 100644
--- a/docker-compose/docker-compose-no-build-geth.yml
+++ b/docker-compose/docker-compose-no-build-geth.yml
@@ -2,7 +2,7 @@ version: '3.8'
 
 services:
   db:
-    image: postgres:13.6
+    image: postgres:14
     restart: always
     container_name: 'postgres'
     environment:
@@ -33,6 +33,7 @@ services:
         ETHEREUM_JSONRPC_HTTP_URL: http://host.docker.internal:8545/
         DATABASE_URL: postgresql://postgres:@host.docker.internal:7432/blockscout?ssl=false
         ECTO_USE_SSL: 'false'
+        SECRET_KEY_BASE: '56NtB48ear7+wMSf0IQuWDAAazhpb31qyc7GiyspBP2vh7t5zlCsF5QDv76chXeN'
     ports:
       - 4000:4000
 
diff --git a/docker-compose/docker-compose-no-build-hardhat-network.yml b/docker-compose/docker-compose-no-build-hardhat-network.yml
index 0277437fa6..9cf66ffe2a 100644
--- a/docker-compose/docker-compose-no-build-hardhat-network.yml
+++ b/docker-compose/docker-compose-no-build-hardhat-network.yml
@@ -2,7 +2,7 @@ version: '3.8'
 
 services:
   db:
-    image: postgres:13.6
+    image: postgres:14
     restart: always
     container_name: 'postgres'
     environment:
@@ -32,6 +32,7 @@ services:
         INDEXER_DISABLE_PENDING_TRANSACTIONS_FETCHER: 'true'
         DATABASE_URL: postgresql://postgres:@host.docker.internal:7432/blockscout?ssl=false
         ECTO_USE_SSL: 'false'
+        SECRET_KEY_BASE: '56NtB48ear7+wMSf0IQuWDAAazhpb31qyc7GiyspBP2vh7t5zlCsF5QDv76chXeN'
     ports:
       - 4000:4000
 
diff --git a/docker-compose/docker-compose-no-build-no-db-container.yml b/docker-compose/docker-compose-no-build-no-db-container.yml
index e62ed11f3a..9c924dba3f 100644
--- a/docker-compose/docker-compose-no-build-no-db-container.yml
+++ b/docker-compose/docker-compose-no-build-no-db-container.yml
@@ -15,6 +15,7 @@ services:
         ETHEREUM_JSONRPC_HTTP_URL: http://host.docker.internal:8545/
         DATABASE_URL: postgresql://postgres:@host.docker.internal:5432/blockscout?ssl=false
         ECTO_USE_SSL: 'false'
+        SECRET_KEY_BASE: '56NtB48ear7+wMSf0IQuWDAAazhpb31qyc7GiyspBP2vh7t5zlCsF5QDv76chXeN'
     ports:
       - 4000:4000
 
diff --git a/docker-compose/docker-compose-no-build-open-ethereum-nethermind.yml b/docker-compose/docker-compose-no-build-open-ethereum-nethermind.yml
index 83d08eadad..02f9124445 100644
--- a/docker-compose/docker-compose-no-build-open-ethereum-nethermind.yml
+++ b/docker-compose/docker-compose-no-build-open-ethereum-nethermind.yml
@@ -2,7 +2,7 @@ version: '3.8'
 
 services:
   db:
-    image: postgres:13.6
+    image: postgres:14
     restart: always
     container_name: 'postgres'
     environment:
@@ -33,6 +33,7 @@ services:
         ETHEREUM_JSONRPC_TRACE_URL: http://host.docker.internal:8545/
         DATABASE_URL: postgresql://postgres:@host.docker.internal:7432/blockscout?ssl=false
         ECTO_USE_SSL: 'false'
+        SECRET_KEY_BASE: '56NtB48ear7+wMSf0IQuWDAAazhpb31qyc7GiyspBP2vh7t5zlCsF5QDv76chXeN'
     ports:
       - 4000:4000
 
diff --git a/docker-compose/docker-compose.yml b/docker-compose/docker-compose.yml
index b34a0e84d4..f14350ff65 100644
--- a/docker-compose/docker-compose.yml
+++ b/docker-compose/docker-compose.yml
@@ -2,7 +2,7 @@ version: '3.8'
 
 services:
   db:
-    image: postgres:13.6
+    image: postgres:14
     restart: always
     container_name: 'postgres'
     environment:
diff --git a/docker/Makefile b/docker/Makefile
index e235211ca3..1f09731f81 100644
--- a/docker/Makefile
+++ b/docker/Makefile
@@ -4,7 +4,7 @@ DOCKER_REPO := blockscout
 APP_NAME := blockscout
 BS_CONTAINER_IMAGE := $(DOCKER_REPO)/$(APP_NAME)
 BS_CONTAINER_NAME := blockscout
-PG_CONTAINER_IMAGE := postgres:13.6
+PG_CONTAINER_IMAGE := postgres:14
 PG_CONTAINER_NAME := db
 THIS_FILE = $(lastword $(MAKEFILE_LIST))
 TAG := $(RELEASE_VERSION)-prerelease-$(shell git log -1 --pretty=format:"%h")