diff --git a/8.1/Dockerfile b/8.1/Dockerfile
index 3cef05c7..dbee79e3 100644
--- a/8.1/Dockerfile
+++ b/8.1/Dockerfile
@@ -245,7 +245,7 @@ ENV \
 	DRUPAL_CONSOLE_LAUNCHER_VERSION=1.9.7 \
 	WPCLI_VERSION=2.11.0 \
 	# platformsh/legacy-cli
-	PLATFORMSH_CLI_VERSION=4.20.5 \
+	PLATFORMSH_CLI_VERSION=4.21.0 \
 	ACQUIA_CLI_VERSION=2.31.0 \
 	TERMINUS_VERSION=3.6.0 \
 	JQ_VERSION=1.7.1 \
diff --git a/8.2/Dockerfile b/8.2/Dockerfile
index 8a932ac2..388a302d 100644
--- a/8.2/Dockerfile
+++ b/8.2/Dockerfile
@@ -246,7 +246,7 @@ ENV \
 	DRUPAL_CONSOLE_LAUNCHER_VERSION=1.9.7 \
 	WPCLI_VERSION=2.11.0 \
 	# platformsh/legacy-cli
-	PLATFORMSH_CLI_VERSION=4.20.5 \
+	PLATFORMSH_CLI_VERSION=4.21.0 \
 	ACQUIA_CLI_VERSION=2.31.0 \
 	TERMINUS_VERSION=3.6.0 \
 	JQ_VERSION=1.7.1 \
diff --git a/8.3/Dockerfile b/8.3/Dockerfile
index a4a5ec1a..2bfcff38 100644
--- a/8.3/Dockerfile
+++ b/8.3/Dockerfile
@@ -255,7 +255,7 @@ ENV \
 	DRUPAL_CONSOLE_LAUNCHER_VERSION=1.9.7 \
 	WPCLI_VERSION=2.11.0 \
 	# platformsh/legacy-cli
-	PLATFORMSH_CLI_VERSION=4.20.5 \
+	PLATFORMSH_CLI_VERSION=4.21.0 \
 	ACQUIA_CLI_VERSION=2.31.0 \
 	TERMINUS_VERSION=3.6.0 \
 	JQ_VERSION=1.7.1 \