diff --git a/OfficialTutorials/HDDM_Basic_Tutorial.ipynb b/OfficialTutorials/HDDM_Basic_Tutorial.ipynb
index d5d50ca..ca7f43c 100644
--- a/OfficialTutorials/HDDM_Basic_Tutorial.ipynb
+++ b/OfficialTutorials/HDDM_Basic_Tutorial.ipynb
@@ -21,7 +21,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "The current version of kabuki is:  0.6.5RC3\n",
+      "The current version of kabuki is:  0.6.5RC4\n",
       "The current version of HDDM is:  0.8.0\n",
       "The current version of arviz is:  0.15.1\n"
      ]
diff --git a/OfficialTutorials/Posterior_Predictive_Checks.ipynb b/OfficialTutorials/Posterior_Predictive_Checks.ipynb
index 2a84300..52579f6 100644
--- a/OfficialTutorials/Posterior_Predictive_Checks.ipynb
+++ b/OfficialTutorials/Posterior_Predictive_Checks.ipynb
@@ -10,7 +10,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "The current version of kabuki is:  0.6.5RC3\n",
+      "The current version of kabuki is:  0.6.5RC4\n",
       "The current version of HDDM is:  0.8.0\n"
      ]
     }
diff --git a/dockerHDDM_Quick_View.ipynb b/dockerHDDM_Quick_View.ipynb
index 6ac7d84..30da8b3 100644
--- a/dockerHDDM_Quick_View.ipynb
+++ b/dockerHDDM_Quick_View.ipynb
@@ -26,7 +26,7 @@
     "!pip install git+https://github.com/panwanke/kabuki\n",
     "```\n",
     "\n",
-    "And you could see the development version is kabuki 0.6.5RC3. "
+    "And you could see the development version is kabuki 0.6.5RC4. "
    ]
   },
   {
@@ -40,7 +40,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "The current version of kabuki is:  0.6.5RC3\n",
+      "The current version of kabuki is:  0.6.5RC4\n",
       "The current version of HDDM is:  0.8.0\n",
       "The current version of arviz is:  0.15.1\n"
      ]
diff --git a/dockerHDDM_Workflow.ipynb b/dockerHDDM_Workflow.ipynb
index 82681e4..b2be01d 100644
--- a/dockerHDDM_Workflow.ipynb
+++ b/dockerHDDM_Workflow.ipynb
@@ -43,7 +43,7 @@
      "output_type": "stream",
      "text": [
       "The current HDDM version is:  0.8.0\n",
-      "The current kabuki version is:  0.6.5RC3\n",
+      "The current kabuki version is:  0.6.5RC4\n",
       "The current PyMC version is:  2.3.8\n",
       "The current ArviZ version is:  0.15.1\n"
      ]