Release/1.26.0
diff --git a/frontend/app/package.json b/frontend/app/package.json
index 28a52a53df00..8980a80a5dc8 100644
--- a/frontend/app/package.json
+++ b/frontend/app/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@streamlit/app",
-  "version": "1.24.1",
+  "version": "1.26.0",
   "license": "Apache-2.0",
   "private": true,
   "homepage": "./",
@@ -33,7 +33,7 @@
     "@emotion/react": "^11.10.5",
     "@emotion/serialize": "^1.1.1",
     "@emotion/styled": "^11.10.5",
-    "@streamlit/lib": "1.24.1",
+    "@streamlit/lib": "1.26.0",
     "axios": "^0.27.2",
     "baseui": "12.2.0",
     "classnames": "^2.3.2",
diff --git a/frontend/lib/package.json b/frontend/lib/package.json
index bf56be5af1da..8795d7b3cf4a 100644
--- a/frontend/lib/package.json
+++ b/frontend/lib/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@streamlit/lib",
-    "version": "1.24.1",
+    "version": "1.26.0",
     "private": true,
     "license": "Apache-2.0",
     "main": "dist/index.js",
diff --git a/frontend/package.json b/frontend/package.json
index 6188b66927c8..ebbb48c3e740 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "streamlit",
-  "version": "1.25.0",
+  "version": "1.26.0",
   "private": true,
   "workspaces": [
     "app",
diff --git a/lib/setup.py b/lib/setup.py
index 72e5bdd96299..16ab0c045f54 100644
--- a/lib/setup.py
+++ b/lib/setup.py
@@ -21,7 +21,7 @@
 
 THIS_DIRECTORY = Path(__file__).parent
 
-VERSION = "1.25.0"  # PEP-440
+VERSION = "1.26.0"  # PEP-440
 
 NAME = "streamlit"
 
diff --git a/lib/test-requirements.txt b/lib/test-requirements.txt
index 906385d4f579..f6c0442d355d 100644
--- a/lib/test-requirements.txt
+++ b/lib/test-requirements.txt
@@ -28,7 +28,7 @@ pytest-playwright>=0.1.2
 pixelmatch>=0.3.0
 pytest-xdist
 
-mypy-protobuf>=3.2
+mypy-protobuf>=3.2, <3.4
 
 # These requirements exist only for `@st.cache` tests. st.cache is deprecated, and
 # we're not going to update its associated tests anymore. Please don't modify


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