diff --git a/contrib/dres_rails/Gemfile.lock b/contrib/dres_rails/Gemfile.lock
index 0ff94da678..9bf64b76e1 100644
--- a/contrib/dres_rails/Gemfile.lock
+++ b/contrib/dres_rails/Gemfile.lock
@@ -186,7 +186,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.6)
     psych (5.1.2)
       stringio
     public_suffix (5.0.3)
diff --git a/contrib/ruby_event_store-outbox/Gemfile.lock b/contrib/ruby_event_store-outbox/Gemfile.lock
index 1241abdaf5..9ad270a96f 100644
--- a/contrib/ruby_event_store-outbox/Gemfile.lock
+++ b/contrib/ruby_event_store-outbox/Gemfile.lock
@@ -154,7 +154,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.6)
     psych (5.1.2)
       stringio
     racc (1.7.3)
@@ -254,7 +254,7 @@ DEPENDENCIES
   mutant-minitest (= 0.12.0)
   mutant-rspec (= 0.12.0)
   mysql2 (~> 0.5.6)
-  pg (~> 1.5.4)
+  pg (~> 1.5.6)
   rails (~> 7.1.3)
   rake (>= 10.0)
   rspec (~> 3.6)
diff --git a/contrib/ruby_event_store-outbox/Gemfile.rails_6_0.lock b/contrib/ruby_event_store-outbox/Gemfile.rails_6_0.lock
index 133f5d16e7..ed7ef2ab07 100644
--- a/contrib/ruby_event_store-outbox/Gemfile.rails_6_0.lock
+++ b/contrib/ruby_event_store-outbox/Gemfile.rails_6_0.lock
@@ -127,7 +127,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.6)
     racc (1.7.3)
     rack (2.2.8.1)
     rack-test (2.1.0)
@@ -220,7 +220,7 @@ DEPENDENCIES
   mutant-minitest (= 0.12.0)
   mutant-rspec (= 0.12.0)
   mysql2 (~> 0.5.6)
-  pg (~> 1.5.4)
+  pg (~> 1.5.6)
   rails (~> 6.0.6)
   rake (>= 10.0)
   rspec (~> 3.6)
diff --git a/contrib/ruby_event_store-outbox/Gemfile.rails_6_1.lock b/contrib/ruby_event_store-outbox/Gemfile.rails_6_1.lock
index 794d08bccb..74679b595d 100644
--- a/contrib/ruby_event_store-outbox/Gemfile.rails_6_1.lock
+++ b/contrib/ruby_event_store-outbox/Gemfile.rails_6_1.lock
@@ -131,7 +131,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.6)
     racc (1.7.3)
     rack (2.2.8.1)
     rack-test (2.1.0)
@@ -223,7 +223,7 @@ DEPENDENCIES
   mutant-minitest (= 0.12.0)
   mutant-rspec (= 0.12.0)
   mysql2 (~> 0.5.6)
-  pg (~> 1.5.4)
+  pg (~> 1.5.6)
   rails (~> 6.1.7)
   rake (>= 10.0)
   rspec (~> 3.6)
diff --git a/contrib/ruby_event_store-outbox/Gemfile.rails_7_0.lock b/contrib/ruby_event_store-outbox/Gemfile.rails_7_0.lock
index 5646e178bb..48ede118a0 100644
--- a/contrib/ruby_event_store-outbox/Gemfile.rails_7_0.lock
+++ b/contrib/ruby_event_store-outbox/Gemfile.rails_7_0.lock
@@ -137,7 +137,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.6)
     racc (1.7.3)
     rack (2.2.8.1)
     rack-test (2.1.0)
@@ -222,7 +222,7 @@ DEPENDENCIES
   mutant-minitest (= 0.12.0)
   mutant-rspec (= 0.12.0)
   mysql2 (~> 0.5.6)
-  pg (~> 1.5.4)
+  pg (~> 1.5.6)
   rails (~> 7.0.7)
   rake (>= 10.0)
   rspec (~> 3.6)
diff --git a/contrib/ruby_event_store-outbox/Gemfile.sidekiq_6_5.lock b/contrib/ruby_event_store-outbox/Gemfile.sidekiq_6_5.lock
index 3c305ac80b..b6465cecca 100644
--- a/contrib/ruby_event_store-outbox/Gemfile.sidekiq_6_5.lock
+++ b/contrib/ruby_event_store-outbox/Gemfile.sidekiq_6_5.lock
@@ -131,7 +131,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.6)
     racc (1.7.3)
     rack (2.2.8.1)
     rack-test (2.1.0)
@@ -223,7 +223,7 @@ DEPENDENCIES
   mutant-minitest (= 0.12.0)
   mutant-rspec (= 0.12.0)
   mysql2 (~> 0.5.6)
-  pg (~> 1.5.4)
+  pg (~> 1.5.6)
   rails (~> 6.1.7)
   rake (>= 10.0)
   redis-client
diff --git a/contrib/ruby_event_store-rom/Gemfile.lock b/contrib/ruby_event_store-rom/Gemfile.lock
index 7ad81e3560..1049bafb5f 100644
--- a/contrib/ruby_event_store-rom/Gemfile.lock
+++ b/contrib/ruby_event_store-rom/Gemfile.lock
@@ -74,7 +74,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.6)
     racc (1.7.3)
     rake (13.0.6)
     regexp_parser (2.9.0)
@@ -145,7 +145,7 @@ DEPENDENCIES
   mutant-minitest (= 0.12.0)
   mutant-rspec (= 0.12.0)
   mysql2 (~> 0.5.6)
-  pg (~> 1.5.4)
+  pg (~> 1.5.6)
   rake (>= 10.0)
   rspec (~> 3.6)
   ruby_event_store!
diff --git a/contrib/ruby_event_store-sequel/Gemfile.lock b/contrib/ruby_event_store-sequel/Gemfile.lock
index 88b56bc5d5..937339369b 100644
--- a/contrib/ruby_event_store-sequel/Gemfile.lock
+++ b/contrib/ruby_event_store-sequel/Gemfile.lock
@@ -42,7 +42,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.6)
     racc (1.7.3)
     rake (13.0.6)
     regexp_parser (2.9.0)
@@ -84,7 +84,7 @@ DEPENDENCIES
   mutant-minitest (= 0.12.0)
   mutant-rspec (= 0.12.0)
   mysql2 (~> 0.5.6)
-  pg (~> 1.5.4)
+  pg (~> 1.5.6)
   rake (>= 10.0)
   rspec (~> 3.6)
   ruby_event_store!
diff --git a/ruby_event_store-active_record/Gemfile.lock b/ruby_event_store-active_record/Gemfile.lock
index 283582a6a2..33b2db347d 100644
--- a/ruby_event_store-active_record/Gemfile.lock
+++ b/ruby_event_store-active_record/Gemfile.lock
@@ -47,7 +47,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    pg (1.5.4)
+    pg (1.5.6)
     racc (1.7.3)
     rake (13.0.6)
     regexp_parser (2.9.0)
@@ -87,7 +87,7 @@ DEPENDENCIES
   mutant-minitest (= 0.12.0)
   mutant-rspec (= 0.12.0)
   mysql2 (~> 0.5.6)
-  pg (~> 1.5.4)
+  pg (~> 1.5.6)
   rake (>= 10.0)
   rspec (~> 3.6)
   ruby_event_store!
diff --git a/support/bundler/Gemfile.database b/support/bundler/Gemfile.database
index f743334380..ba59e22385 100644
--- a/support/bundler/Gemfile.database
+++ b/support/bundler/Gemfile.database
@@ -1,3 +1,3 @@
-gem "pg", "~> 1.5.4"
+gem "pg", "~> 1.5.6"
 gem "mysql2", "~> 0.5.6"
 gem "sqlite3", "~> 1.7"