diff --git a/cmd/ocsp-updater/main.go b/cmd/ocsp-updater/main.go
index 5a70ad570..1f62bdad1 100644
--- a/cmd/ocsp-updater/main.go
+++ b/cmd/ocsp-updater/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"crypto/md5"
 	"crypto/sha256"
 	"crypto/tls"
 	"crypto/x509"
@@ -199,6 +200,21 @@ func newUpdater(
 	return &updater, nil
 }
 
+func reverseBytes(b []byte) []byte {
+	for i, j := 0, len(b)-1; i < j; i, j = i+1, j-1 {
+		b[i], b[j] = b[j], b[i]
+	}
+	return b
+}
+
+func generatePOSTURL(der []byte, ocspServer string) string {
+	// Generate POST url, format is the URL that was POST'd to with a query string with
+	// the parameter 'body-mdy' and the value of the first two uint32s in little endian
+	// order in hex of the MD5 hash of the OCSP request body.
+	hash := md5.Sum(der)
+	return fmt.Sprintf("%s?body-mdy=%x%x", ocspServer, reverseBytes(hash[0:4]), reverseBytes(hash[4:8]))
+}
+
 // sendPurge should only be called as a Goroutine as it will block until the purge
 // request is successful
 func (updater *OCSPUpdater) sendPurge(der []byte) {
@@ -214,18 +230,18 @@ func (updater *OCSPUpdater) sendPurge(der []byte) {
 		return
 	}
 
-	// Create a GET style OCSP url for each endpoint in cert.OCSPServer (still waiting
-	// on word from Akamai on how to properly purge cached POST requests, for now just
-	// do GET)
+	// Create a GET and special Akamai POST style OCSP url for each endpoint in cert.OCSPServer
 	urls := []string{}
 	for _, ocspServer := range cert.OCSPServer {
 		if !strings.HasSuffix(ocspServer, "/") {
 			ocspServer += "/"
 		}
+		// Generate GET url
 		urls = append(
 			urls,
 			fmt.Sprintf("%s%s", ocspServer, url.QueryEscape(base64.StdEncoding.EncodeToString(req))),
 		)
+		urls = append(urls, generatePOSTURL(der, ocspServer))
 	}
 
 	err = updater.ccu.Purge(urls)
diff --git a/cmd/ocsp-updater/main_test.go b/cmd/ocsp-updater/main_test.go
index c251a38ad..798586ab6 100644
--- a/cmd/ocsp-updater/main_test.go
+++ b/cmd/ocsp-updater/main_test.go
@@ -851,3 +851,17 @@ func TestMissingLogs(t *testing.T) {
 		}
 	}
 }
+
+func TestReverseBytes(t *testing.T) {
+	a := []byte{0, 1, 2, 3}
+	test.AssertDeepEquals(t, reverseBytes(a), []byte{3, 2, 1, 0})
+}
+
+func TestGeneratePOSTURL(t *testing.T) {
+	der := []byte{0}
+	test.AssertEquals(
+		t,
+		generatePOSTURL(der, "ocsp.invalid/"),
+		"ocsp.invalid/?body-mdy=ad85b89389a00dfe",
+	)
+}