diff --git a/backend/Gemfile b/backend/Gemfile
index 8b51596e..cac99656 100644
--- a/backend/Gemfile
+++ b/backend/Gemfile
@@ -14,7 +14,7 @@ gem "active_model_serializers", "0.9.8"
 
 # Use postgresql and mongo as the database for Active Record
 gem "mongoid", "7.3.3"
-gem "pg", "1.2.3"
+gem "pg", "1.5.6"
 
 # Use Puma as the app server
 gem "puma", "6.4.2"
diff --git a/backend/Gemfile.lock b/backend/Gemfile.lock
index 4f422cd1..70395d32 100644
--- a/backend/Gemfile.lock
+++ b/backend/Gemfile.lock
@@ -294,9 +294,9 @@ GEM
     parser (3.2.2.4)
       ast (~> 2.4.1)
       racc
-    pg (1.2.3)
-    pg (1.2.3-x64-mingw32)
-    pg (1.2.3-x86-mingw32)
+    pg (1.5.6)
+    pg (1.5.6-x64-mingw32)
+    pg (1.5.6-x86-mingw32)
     pry (0.14.2)
       coderay (~> 1.1)
       method_source (~> 1.0)
@@ -519,7 +519,7 @@ DEPENDENCIES
   nearest_time_zone
   omniauth (= 1.8.1)
   omniauth-facebook (= 3.0.0)
-  pg (= 1.2.3)
+  pg (= 1.5.6)
   pry-byebug
   pry-doc
   pry-rails