diff --git a/.cirrus.yml b/.cirrus.yml
index 706b42c795..280948bcc7 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -55,7 +55,6 @@ task:
     image: family/pg-ci-freebsd-13
     platform: freebsd
     cpu: $CPUS
-    memory: 4G
     disk: 50
 
   sysinfo_script: |
@@ -166,7 +165,6 @@ task:
     image: family/pg-ci-bullseye
     platform: linux
     cpu: $CPUS
-    memory: 4G
 
   ccache_cache:
     folder: ${CCACHE_DIR}
@@ -392,7 +390,6 @@ task:
     image: family/pg-ci-windows-ci-vs-2019
     platform: windows
     cpu: $CPUS
-    memory: 4G
 
   sysinfo_script: |
     chcp