diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5d8f7662e..aebe8b72b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,8 +54,8 @@ jobs:
         jq
     - name: Copy junifer-data directory
       run: |
-        mkdir -p $HOME/junifer_data/v3
-        cp -ar /root/junifer_data/v3/. $HOME/junifer_data/v3/
+        mkdir -p $HOME/junifer_data/v4
+        cp -ar /root/junifer_data/v4/. $HOME/junifer_data/v4/
     - name: Checkout repository
       uses: actions/checkout@v5
       with:
diff --git a/.github/workflows/docs-preview.yml b/.github/workflows/docs-preview.yml
index 72bacf987..d79c1af51 100644
--- a/.github/workflows/docs-preview.yml
+++ b/.github/workflows/docs-preview.yml
@@ -40,8 +40,8 @@ jobs:
         jq
     - name: Copy junifer-data directory
       run: |
-        mkdir -p $HOME/junifer_data/v3
-        cp -ar /root/junifer_data/v3/. $HOME/junifer_data/v3/
+        mkdir -p $HOME/junifer_data/v4
+        cp -ar /root/junifer_data/v4/. $HOME/junifer_data/v4/
     - name: Checkout repository
       uses: actions/checkout@v5
       with:
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 5293eb1ad..555d1321b 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -31,8 +31,8 @@ jobs:
         jq
     - name: Copy junifer-data directory
       run: |
-        mkdir -p $HOME/junifer_data/v3
-        cp -ar /root/junifer_data/v3/. $HOME/junifer_data/v3/
+        mkdir -p $HOME/junifer_data/v4
+        cp -ar /root/junifer_data/v4/. $HOME/junifer_data/v4/
     - name: Checkout repository
       uses: actions/checkout@v5
       with:
diff --git a/docs/changes/newsfragments/466.misc b/docs/changes/newsfragments/466.misc
new file mode 100644
index 000000000..6bff2cb9f
--- /dev/null
+++ b/docs/changes/newsfragments/466.misc
@@ -0,0 +1 @@
+Bump ``junifer-data`` to ``v4`` by `Synchon Mandal`_
diff --git a/junifer/data/utils.py b/junifer/data/utils.py
index d256367a6..a10e49e10 100644
--- a/junifer/data/utils.py
+++ b/junifer/data/utils.py
@@ -24,10 +24,10 @@
 
 
 # junifer-data version constant
-JUNIFER_DATA_VERSION = "3"
+JUNIFER_DATA_VERSION = "4"
 
 # junifer-data hexsha constant
-JUNIFER_DATA_HEXSHA = "13665e45eaaaa8de259c50c47a2f6a0a095ec410"
+JUNIFER_DATA_HEXSHA = "d178bddf383fede04742d7020312a574de47f0ab"
 
 JUNIFER_DATA_PARAMS = {
     "tag": JUNIFER_DATA_VERSION,