diff --git a/requirements.txt b/requirements.txt
index ea0a6982..0f513147 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-httpx~=0.18.1
+httpx~=0.18.2
 motor~=2.4
-optimade[server]~=0.15.1
+optimade[server]~=0.15.4
diff --git a/requirements_docs.txt b/requirements_docs.txt
index de8c3c9a..ed799e5f 100644
--- a/requirements_docs.txt
+++ b/requirements_docs.txt
@@ -1,5 +1,5 @@
-mkdocs==1.1.2
-mkdocs-awesome-pages-plugin==2.5.0
-mkdocs-material==7.1.7
-mkdocs-minify-plugin==0.4.0
-mkdocstrings==0.15.1
+mkdocs~=1.2
+mkdocs-awesome-pages-plugin~=2.5
+mkdocs-material~=7.1
+mkdocs-minify-plugin~=0.4.0
+mkdocstrings~=0.15.2