diff --git a/api/package-lock.json b/api/package-lock.json
index 77877bb41..c2df1f082 100644
--- a/api/package-lock.json
+++ b/api/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "explorer-api",
-    "version": "3.3.7.rc.1",
+    "version": "3.3.7-rc.1",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "explorer-api",
-            "version": "3.3.7.rc.1",
+            "version": "3.3.7-rc.1",
             "license": "Apache-2.0",
             "dependencies": {
                 "@google-cloud/logging-winston": "^5.3.0",
diff --git a/api/package.json b/api/package.json
index cce14884e..ca2e2d8d3 100644
--- a/api/package.json
+++ b/api/package.json
@@ -1,7 +1,7 @@
 {
     "name": "explorer-api",
     "description": "API for Tangle Explorer",
-    "version": "3.3.7.rc.1",
+    "version": "3.3.7-rc.1",
     "author": "Martyn Janes <martyn.janes@iota.org>",
     "repository": {
         "type": "git",
diff --git a/client/package-lock.json b/client/package-lock.json
index cfe698358..5dbd013d0 100644
--- a/client/package-lock.json
+++ b/client/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "explorer-client",
-    "version": "3.3.7.rc.1",
+    "version": "3.3.7-rc.1",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "explorer-client",
-            "version": "3.3.7.rc.1",
+            "version": "3.3.7-rc.1",
             "hasInstallScript": true,
             "license": "Apache-2.0",
             "dependencies": {
diff --git a/client/package.json b/client/package.json
index 2c42ef988..e2e7fb13c 100644
--- a/client/package.json
+++ b/client/package.json
@@ -1,7 +1,7 @@
 {
     "name": "explorer-client",
     "description": "Tangle Explorer UI",
-    "version": "3.3.7.rc.1",
+    "version": "3.3.7-rc.1",
     "author": "Martyn Janes <martyn.janes@iota.org>",
     "type": "module",
     "repository": {
diff --git a/package.json b/package.json
index 4cb7fff13..a21feaf53 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
     "name": "explorer",
     "description": "Tangle Explorer",
-    "version": "3.3.7.rc.1",
+    "version": "3.3.7-rc.1",
     "scripts": {
         "setup:client": "cd client && npm install && npm run postinstall",
         "setup:api": "cd api && npm install && npm run build-compile && npm run build-config",