diff --git a/easybuild/easyconfigs/i/IPython/IPython-7.25.0-GCCcore-10.3.0.eb b/easybuild/easyconfigs/i/IPython/IPython-7.25.0-GCCcore-10.3.0.eb
index 27ff87d5da01..0ecf20cc339b 100644
--- a/easybuild/easyconfigs/i/IPython/IPython-7.25.0-GCCcore-10.3.0.eb
+++ b/easybuild/easyconfigs/i/IPython/IPython-7.25.0-GCCcore-10.3.0.eb
@@ -90,8 +90,8 @@ exts_list = [
     ('nbclient', '0.5.3', {
         'checksums': ['db17271330c68c8c88d46d72349e24c147bb6f34ec82d8481a8f025c4d26589c'],
     }),
-    ('nbconvert', '6.1.0', {
-        'checksums': ['d22a8ff202644d31db254d24d52c3a96c82156623fcd7c7f987bba2612303ec9'],
+    ('nbconvert', '6.4.0', {
+        'checksums': ['5412ec774c6db4fccecb8c4ba07ec5d37d6dcf5762593cb3d6ecbbeb562ebbe5'],
     }),
     ('tornado', '6.1', {
         'checksums': ['33c6e81d7bd55b468d2e793517c909b139960b6c790a60b7991b9b6b76fb9791'],
diff --git a/easybuild/easyconfigs/i/IPython/IPython-7.26.0-GCCcore-11.2.0.eb b/easybuild/easyconfigs/i/IPython/IPython-7.26.0-GCCcore-11.2.0.eb
index 86c05a433f27..b8a2d71f5841 100644
--- a/easybuild/easyconfigs/i/IPython/IPython-7.26.0-GCCcore-11.2.0.eb
+++ b/easybuild/easyconfigs/i/IPython/IPython-7.26.0-GCCcore-11.2.0.eb
@@ -90,8 +90,8 @@ exts_list = [
     ('nbclient', '0.5.3', {
         'checksums': ['db17271330c68c8c88d46d72349e24c147bb6f34ec82d8481a8f025c4d26589c'],
     }),
-    ('nbconvert', '6.1.0', {
-        'checksums': ['d22a8ff202644d31db254d24d52c3a96c82156623fcd7c7f987bba2612303ec9'],
+    ('nbconvert', '6.4.0', {
+        'checksums': ['5412ec774c6db4fccecb8c4ba07ec5d37d6dcf5762593cb3d6ecbbeb562ebbe5'],
     }),
     ('tornado', '6.1', {
         'checksums': ['33c6e81d7bd55b468d2e793517c909b139960b6c790a60b7991b9b6b76fb9791'],