diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 1757c98..fb9c6d2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -55,11 +55,12 @@ jobs:
     - name: Update the version number
       if: ${{ steps.release.outputs.prs_created == 'true' }}
       run: |
+        git config pull.ff only
         git checkout ${{ fromJSON(steps.release.outputs.pr).headBranchName }}
         git pull origin ${{ fromJSON(steps.release.outputs.pr).headBranchName }}
         version=$(jq -r '."."' .github/release-manifest.json)
         version=${version#v}
-        sed -i '/const semanticVersion = \"v[0-9]*\.[0-9]*\.[0-9]*\"/cconst semanticVersion = \"v$version\"' version.go
+        sed -i '/const semanticVersion = \"[0-9]*\.[0-9]*\.[0-9]*\"/cconst semanticVersion = \"$version\"' version.go
         git config --local user.name "David Letterman"
         git config --local user.email "48985810+david-letterman@users.noreply.github.com"
         git add version.go
diff --git a/anthropic.go b/anthropic.go
index 09e6895..5203dd2 100644
--- a/anthropic.go
+++ b/anthropic.go
@@ -15,7 +15,7 @@ import (
 const (
 	defaultAPIVersion    = "2023-06-01"
 	defaultBaseURL       = "https://api.anthropic.com/v1/"
-	defaultBaseUserAgent = "unfunco/anthropic-sdk-go"
+	defaultBaseUserAgent = "anthropic-sdk-go"
 )
 
 // Client manages communication with the Anthropic REST API.
@@ -77,7 +77,7 @@ func (c *Client) NewRequest(method, path string, body any) (*http.Request, error
 	}
 
 	req.Header.Set("anthropic-version", defaultAPIVersion)
-	req.Header.Set("user-agent", defaultBaseUserAgent+"@"+semanticVersion)
+	req.Header.Set("user-agent", defaultBaseUserAgent+"/"+semanticVersion)
 
 	if body != nil {
 		req.Header.Set("content-type", "application/json")
diff --git a/version.go b/version.go
index 8adcfc7..38ad355 100644
--- a/version.go
+++ b/version.go
@@ -2,4 +2,4 @@ package anthropic
 
 // semanticVersion does not need to be updated manually.
 // It is automatically updated by the release process.
-const semanticVersion = "v0.1.0"
+const semanticVersion = "0.1.0"