diff --git a/proxy/src/main/java/google/registry/proxy/config/default-config.yaml b/proxy/src/main/java/google/registry/proxy/config/default-config.yaml
index 5218b1e50..d37fe2413 100644
--- a/proxy/src/main/java/google/registry/proxy/config/default-config.yaml
+++ b/proxy/src/main/java/google/registry/proxy/config/default-config.yaml
@@ -9,7 +9,7 @@
 projectId: your-gcp-project-id
 
 # Time to begin enforcement of TLS versions and cipher suites.
-tlsEnforcementStartTime: "2021-04-01T16:00:00Z"
+tlsEnforcementStartTime: "1970-01-01T00:00:00Z"
 
 # OAuth scope that the GoogleCredential will be constructed with. This list
 # should include all service scopes that the proxy depends on.
diff --git a/proxy/src/main/java/google/registry/proxy/config/proxy-config-alpha.yaml b/proxy/src/main/java/google/registry/proxy/config/proxy-config-alpha.yaml
index d8452d363..ea71687e3 100644
--- a/proxy/src/main/java/google/registry/proxy/config/proxy-config-alpha.yaml
+++ b/proxy/src/main/java/google/registry/proxy/config/proxy-config-alpha.yaml
@@ -1,4 +1 @@
 # Add environment-specific proxy configuration here.
-
-# Time to begin enforcement of TLS versions and cipher suites.
-tlsEnforcementStartTime: "1970-01-01T00:00:00Z"
diff --git a/proxy/src/main/java/google/registry/proxy/config/proxy-config-crash-canary.yaml b/proxy/src/main/java/google/registry/proxy/config/proxy-config-crash-canary.yaml
index d8452d363..ea71687e3 100644
--- a/proxy/src/main/java/google/registry/proxy/config/proxy-config-crash-canary.yaml
+++ b/proxy/src/main/java/google/registry/proxy/config/proxy-config-crash-canary.yaml
@@ -1,4 +1 @@
 # Add environment-specific proxy configuration here.
-
-# Time to begin enforcement of TLS versions and cipher suites.
-tlsEnforcementStartTime: "1970-01-01T00:00:00Z"
diff --git a/proxy/src/main/java/google/registry/proxy/config/proxy-config-crash.yaml b/proxy/src/main/java/google/registry/proxy/config/proxy-config-crash.yaml
index d8452d363..ea71687e3 100644
--- a/proxy/src/main/java/google/registry/proxy/config/proxy-config-crash.yaml
+++ b/proxy/src/main/java/google/registry/proxy/config/proxy-config-crash.yaml
@@ -1,4 +1 @@
 # Add environment-specific proxy configuration here.
-
-# Time to begin enforcement of TLS versions and cipher suites.
-tlsEnforcementStartTime: "1970-01-01T00:00:00Z"
diff --git a/proxy/src/main/java/google/registry/proxy/config/proxy-config-local.yaml b/proxy/src/main/java/google/registry/proxy/config/proxy-config-local.yaml
index d8452d363..ea71687e3 100644
--- a/proxy/src/main/java/google/registry/proxy/config/proxy-config-local.yaml
+++ b/proxy/src/main/java/google/registry/proxy/config/proxy-config-local.yaml
@@ -1,4 +1 @@
 # Add environment-specific proxy configuration here.
-
-# Time to begin enforcement of TLS versions and cipher suites.
-tlsEnforcementStartTime: "1970-01-01T00:00:00Z"
diff --git a/proxy/src/main/java/google/registry/proxy/config/proxy-config-sandbox-canary.yaml b/proxy/src/main/java/google/registry/proxy/config/proxy-config-sandbox-canary.yaml
index d8452d363..ea71687e3 100644
--- a/proxy/src/main/java/google/registry/proxy/config/proxy-config-sandbox-canary.yaml
+++ b/proxy/src/main/java/google/registry/proxy/config/proxy-config-sandbox-canary.yaml
@@ -1,4 +1 @@
 # Add environment-specific proxy configuration here.
-
-# Time to begin enforcement of TLS versions and cipher suites.
-tlsEnforcementStartTime: "1970-01-01T00:00:00Z"
diff --git a/proxy/src/main/java/google/registry/proxy/config/proxy-config-sandbox.yaml b/proxy/src/main/java/google/registry/proxy/config/proxy-config-sandbox.yaml
index d8452d363..ea71687e3 100644
--- a/proxy/src/main/java/google/registry/proxy/config/proxy-config-sandbox.yaml
+++ b/proxy/src/main/java/google/registry/proxy/config/proxy-config-sandbox.yaml
@@ -1,4 +1 @@
 # Add environment-specific proxy configuration here.
-
-# Time to begin enforcement of TLS versions and cipher suites.
-tlsEnforcementStartTime: "1970-01-01T00:00:00Z"