diff --git a/Pipfile b/Pipfile
index 00d3575b..794324c3 100644
--- a/Pipfile
+++ b/Pipfile
@@ -5,7 +5,7 @@ verify_ssl = true
 
 [packages]
 mkdocs = "==1.1.2"
-mkdocs-material = "==7.1.2"
+mkdocs-material = "==7.1.3"
 python-markdown-math = "==0.8"
 Pygments = "==2.8.1"
 prompt_toolkit = "==3.0.18"
diff --git a/Pipfile.lock b/Pipfile.lock
index ed72dfa3..1dfd563b 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "d7464ec975c984bab6bebad05fd4c3c35368938798563165c466eb8f07467121"
+            "sha256": "142f2baf75d4f51a6e875de34e135805b327f52acd1a18d8b4786d147382eb89"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -116,11 +116,11 @@
         },
         "mkdocs-material": {
             "hashes": [
-                "sha256:2ac789c380bbea0801ae34e01fbf76c8bfbebcf0bce15bc76225182f1191617e",
-                "sha256:8973786f90468c1e947eb762a89a64ac749759e7dafba911636216dd7982c7e1"
+                "sha256:437638b0de7a9113d7f1c9ddc93c0a29a3b808c71c3606713d8c1fa437697a3e",
+                "sha256:e34bba93ad1a0e6f9afc371f4ef55bedabbf13b9a786b013b0ce26ac55ec2932"
             ],
             "index": "pypi",
-            "version": "==7.1.2"
+            "version": "==7.1.3"
         },
         "mkdocs-material-extensions": {
             "hashes": [
@@ -131,10 +131,10 @@
         },
         "nltk": {
             "hashes": [
-                "sha256:1235660f52ab10fda34d5277096724747f767b2903e1c0c4e14bde013552c9ba",
-                "sha256:cbc2ed576998fcf7cd181eeb3ca029e5f0025b264074b4beb57ce780673f8b86"
+                "sha256:240e23ab1ab159ef9940777d30c7c72d7e76d91877099218a7585370c11f6b9e",
+                "sha256:57d556abed621ab9be225cc6d2df1edce17572efb67a3d754630c9f8381503eb"
             ],
-            "version": "==3.6.1"
+            "version": "==3.6.2"
         },
         "prompt-toolkit": {
             "hashes": [
diff --git a/requirements.txt b/requirements.txt
index 2b448f36..9f96a92e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,9 +8,9 @@ lunr[languages]==0.5.8
 markdown==3.3.4
 markupsafe==2.0.0rc2
 mkdocs-material-extensions==1.0.1
-mkdocs-material==7.1.2
+mkdocs-material==7.1.3
 mkdocs==1.1.2
-nltk==3.6.1
+nltk==3.6.2
 prompt-toolkit==3.0.18
 pygments==2.8.1
 pymdown-extensions==8.1.1